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Journal articles on the topic 'Ctenoid'

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1

GON, OFER. "Scale ontogeny in the cardinalfish family Apogonidae." Zootaxa 4196, no. 1 (2016): 107. http://dx.doi.org/10.11646/zootaxa.4196.1.6.

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Following the discovery of spinoid scales in species of the cardinalfish genus Siphamia, a survey of 20 apogonid genera, using scanning electron microscopy, found that scale ontogeny in the Apogonidae usually proceeds along three phases, cycloid, spinoid and transforming ctenoid, that develop in that order. The transforming ctenoid scales of the Pempheridae, considered a sister group of the Apgogonidae by some authors, follow the same ontogenetic pattern. Transforming ctenoid scales are the ancestral scale type in the Apogonidae, making their spinoid and cycloid scales a secondary loss or reve
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2

Liu, Zhaoqing, Xiaobo Li, and Robert R. Reisz. "The age and growth information of a ctenoid scale fossil from the Upper Cretaceous Nenjiang Formation in Songliao Basin, China." PLOS ONE 19, no. 5 (2024): e0303198. http://dx.doi.org/10.1371/journal.pone.0303198.

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The study of morphological characteristics and growth information in fish scales is a crucial component of modern fishery biological research, while it has been less studied in fossil materials. This paper presents a detailed morphological description and growth analysis of a fossil ctenoid scale obtained from the Upper Cretaceous Campanian lacustrine deposits in northeastern China. The morphological features of this fossil scale are well-preserved and consistent with the structures found in ctenoid scales of extant fish species and display prominent ring ornamentation radiating outward from t
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3

Hoese, Douglass F. "A review of the Cryptocentrus strigilliceps complex (Teleostei: Gobiidae), with description of a new species." Journal of the Ocean Science Foundation 32 (January 21, 2019): 23–38. https://doi.org/10.5281/zenodo.2539733.

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Cryptocentrus altipinna, n. sp. is described as a new species, distinguished from other species of Cryptocentrus in having ctenoid scales on the body, a high first dorsal fin, and the predorsal area without scales. The species is known only from a few specimens from the Indian Ocean and appears closest to C. caeruleomaculatus, which is not found in the central or western Indian Ocean. The new species  is most similar to C. caeruleomaculatus and C. strigilliceps, forming a complex characterized mainly by having ctenoid scales posteriorly on the body (vs. all cycloid), among a set of other
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4

Parsley, Ronald L. "Morphological and paleoecological analysis of the Ordovician ankyroid Lagynocystis (Stylophora: Echinodermata)." Journal of Paleontology 74, no. 2 (2000): 254–62. http://dx.doi.org/10.1017/s0022336000031474.

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Despite its atypical thecal plate pattern, Lagynocystis pyramidalis (Jaekel, 1918) (Middle Ordovician, Northern Gondwanaland) is composed of normally positioned marginal plates on the left side of the theca, whereas those on the right side are shortened or missing in comparison with marginal plates of other ankyroids. The only somatic on the lower thecal surface is the CS plate. The abnormally long distal aulacophore, reduced theca, and internal ctenoid organ are interpreted as adaptations to deep water, dysaerobic environmental conditions. Ctenoid organ morphology is re-evaluated and is inter
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5

SEMIH, ENGIN, LARSON HELEN, and IRMAK ERHAN. "Hazeus ingressus sp. nov. a new goby species (Perciformes: Gobiidae) and a new invasion in the Mediterranean Sea." Mediterranean Marine Science Journal 19(2) (July 5, 2018): 316–25. https://doi.org/10.12681/mms.14336.

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A new species of gobiid, <em>Hazeus ingressus </em>sp. nov. (Teleostei: Gobiidae) is described from the Levantine coast of Turkey. The species probably originates from the Red Sea and represents the 11th alien gobiid species in the Mediterranean Sea. The new species is distinguished from its Indo-Pacific congeners by a combination of the following characters: no dark blotch on the first dorsal fin; caudal fin coloration; scales in lateral series 25-28 (modally 27); second dorsal fin rays I,8; anal fin rays I,8-9; predorsal scales ctenoid 7; short, stout gill rakers 2+8. This finding suggests t
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6

Yakubova, Olesya Sergeevna, and Adelia Adlerovna Kushbanova. "Biotechnological potential of fish scales of the Astrakhan region." Vestnik of Astrakhan State Technical University. Series: Fishing industry 2024, no. 4 (2024): 136–45. https://doi.org/10.24143/2073-5529-2024-4-136-145.

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Recycling of secondary fish resources is an important task for the organization of efficient and environmentally friendly production, taking into account the principle of resource conservation. To develop a comprehensive technology for processing fish scales, an in-depth and complete study of its types, chemical composition and dimensional and mass characteristics is necessary. It has been established that the scales of the fish of the Astrakhan region are represented by two types: ganoid (in sturgeon) and elasmoid (in most commercial and pond fish). Elasmoid scales are divided into cycloid an
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7

López-Fernández, Hernán, Donald C. Taphorn, and Elford A. Liverpool. "Phylogenetic diagnosis and expanded description of the genus Mazarunia Kullander, 1990 (Teleostei: Cichlidae) from the upper Mazaruni River, Guyana, with description of two new species." Neotropical Ichthyology 10, no. 3 (2012): 465–86. http://dx.doi.org/10.1590/s1679-62252012000300001.

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We expand the description of the genus Mazarunia Kullander, 1990, explore morphological diagnostic characters for the genus and for its sister-group relationship with Guianacara Kullander &amp; Nijssen, 1989 in a phylogenetic context, expand the description of M. mazarunii and describe two new species. Mazarunia can be diagnosed by the combination of numerous anatomical traits, including the unique loss of infraorbital 6, the configuration of the first epibranchial in two of the species, a well-developed posteroventral lateral expansion of the palatine that is largely contiguous with the ectop
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8

TORNABENE, LUKE, and CAROLE C. BALDWIN. "Psilotris vantasselli, a new species of goby from the tropical western Atlantic (Teleostei: Gobiidae: Gobiosomatini: Nes subgroup)." Zootaxa 4624, no. 2 (2019): 191–204. http://dx.doi.org/10.11646/zootaxa.4624.2.3.

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A new species of goby is described from submersible and scuba collections off Bonaire and New Providence Island, Bahamas. A molecular phylogenetic analysis of mitochondrial and nuclear genes confirms the placement of the new species within the genus Psilotris of the Nes subgroup of the Gobiosomatini. The new species is easily distinguished from congeners and morphologically similar species of Varicus by its unique coloration, which includes eight narrow, bright yellow bars on the trunk, each with a small orange spot centered on the lateral midline. In addition, the combination of the absence o
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9

TORNABENE, LUKE, JAMES L. VAN TASSELL, and D. ROSS ROBERTSON. "Microgobius urraca (Teleostei: Gobiidae), a new species of goby from the tropical eastern Pacific." Zootaxa 3447, no. 1 (2012): 41. http://dx.doi.org/10.11646/zootaxa.3447.1.3.

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A new species of goby in the genus Microgobius (Teleostei: Gobiidae: Gobiosomatini) is described from the Pacific coastof Panama. It is morphologically similar to M. erectus, but differs from that species in possessing fewer lateral scale rows,lacking a patch of ctenoid scales under the pectoral fin, having unpigmented epaxial myosepta, having a distinct oval-shaped dark blotch on the first dorsal fin, and possessing three blue-white stripes on a dark caudal fin. Differences in boththe number and type of scales, dorsal and anal fin ray counts, the poor development of a fleshy dorsal crest, and
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10

Allen, Gerald R., Mark V. Erdmann, and Meity U. Mongdong. "Vanderhorstia dawnarnallae, a new species of shrimpgoby (Pisces: Gobiidae) from West Papua, Indonesia." Journal of the Ocean Science Foundation 33 (October 25, 2019): 89–98. https://doi.org/10.5281/zenodo.3519384.

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A new species of gobiid fish, <em>Vanderhorstia dawnarnallae</em>, is described from West Papua Province, Indonesia, on the basis of two male specimens, 39.1 and 39.2 mm SL. Diagnostic features include 13 dorsal-fin and anal-fin segmented rays, third dorsal-fin spine long and filamentous, 47&ndash;49 lateral scales, body scales mostly cycloid, posteriormost scales of caudal peduncle finely ctenoid, and scales absent on head and nape region. Color in life is pale greyish to yellowish white with 5 mid-lateral clusters of blue-margined yellow spots with one or two vertical rows of 3&ndash;5 blue-
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11

Allen, Gerald R., Mark V. Erdmann, and William M. Brooks. "A new species of Tomiyamichthys shrimpgoby (Pisces: Gobiidae) from Papua New Guinea." Journal of the Ocean Science Foundation 31 (October 11, 2018): 38–46. https://doi.org/10.5281/zenodo.1458266.

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A new species of gobiid fish, Tomiyamichthys stuarti, is described from Milne Bay Province, eastern Papua New Guinea, on the basis of three male specimens, 20.4&ndash;23.5 mm SL. Diagnostic features include 11 segmented dorsal-fin and anal-fin rays, 15 pectoral-fin rays, 51&ndash;56 lateral and 11 transverse scales, no preopercular pores (no M&rsquo;, N, and O&rsquo;), no pores above the operculum (no K&rsquo; and L&rsquo;), no prepelvic or prepectoral scales, ctenoid posterior body scales, and color pattern. The markings on the new species consist of 5 large brown blotches on the side of the
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12

Fricke, Ronald, Daniel Golani, and Brenda Appelbaum-Golani. "Cynoglossus crepida, a new species of tonguesole from the Gulf of Aqaba, Red Sea (Teleostei: Cynoglossidae)." Journal of the Ocean Science Foundation 25 (February 22, 2017): 77–87. https://doi.org/10.5281/zenodo.321395.

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The Bluntnose Deepwater Tonguesole, Cynoglossus crepida, n. sp., is described from the Red Sea in the Gulf of Aqaba, off Eilat, Israel, based on a specimen collected in a trammel net at a depth of 440 m. The new species is characterized within the C. carpenteri-species group by the relatively long, bluntly rounded snout; head length of 25% SL, snout length 10% SL (40% HL); eyes not contiguous; corner of mouth nearer to the posterior edge of the opercle than to the tip of the snout; eyed side with 3 lateral lines, lateral-line scales 104, scale rows between the midlateral and dorsolateral lines
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13

Fricke, Ronald, Daniel Golani, Brenda Appelbaum-Golani, and Uwe Zajonz. "Scorpaena decemradiata new species (Teleostei: Scorpaenidae) from the Gulf of Aqaba, northern Red Sea, a species distinct from Scorpaena porcus." Scientia Marina 82, no. 3 (2018): 169. http://dx.doi.org/10.3989/scimar.04824.17a.

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The scorpionfish Scorpaena decemradiata n. sp. is described from off the coast of Israel in the Gulf of Aqaba, northern Red Sea. The new species is similar to S. porcus Linnaeus, 1758, but is characterized by dorsal fin spines XII, soft dorsal fin rays 10 (the last divided at base); pectoral fin rays 16, uppermost branched pectoral fin ray is the second; lacrimal with 2 spines over maxilla that point at nearly right angle from each other, the posterior pointing ventrally and slightly anteriorly; occipital pit well developed; anteriormost mandibular lateral-line pores small, separated; scales c
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14

SCHLIEWEN, ULRICH K., PETER WIRTZ, and MARCELO KOVAČIĆ. "Didogobius janetarum sp. nov., a new cryptobenthic goby species from the Cape Verde Islands (Teleostei: Gobiidae)." Zootaxa 4438, no. 2 (2018): 381. http://dx.doi.org/10.11646/zootaxa.4438.2.12.

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Didogobius janetarum sp. nov. is described from five specimens collected from small caves and rock crevices between 12 and 20 m depth off two locations of Santiago Island, Cape Verde Islands. The species differs from all currently described congeners by the combination of the following characters: (1) 27 vertebrae, (2) second dorsal fin I + 10, (3) posterior quarter of predorsal region in front of first dorsal fin origin scaled, with several rows of cycloid scales, (4) body squamation cycloid anteriorly and ctenoid posteriorly, (5) scales in the lateral series 30–32, (6) anterior oculoscapular
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15

DELVENTHAL, NAOMI R., and RANDALL D. MOOI. "Callogobius williamsi, a new species of goby (Teleostei: Gobiidae) from the Marquesas Islands, with notes on the status of all nominal Callogobius species." Zootaxa 5339, no. 5 (2023): 449–64. http://dx.doi.org/10.11646/zootaxa.5339.5.3.

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Callogobius williamsi new species is described from the 32.9 mm SL holotype and 29 paratypes (6.9–32.5 mm SL) from the Marquesas Islands, South Pacific Ocean. Callogobius williamsi is distinguished from all other known Callogobius species by the following combination of characters: scales mostly cycloid, ctenoid scales, if present, restricted to the mid-lateral caudal peduncle, 23–26 (mode 25) scales in lateral series, preopercular papillae row (Row 20) absent, and the interorbital canal with pores B′, D, and F′ present. Callogobius williamsi belongs to a group of 23 nominal species (the hasse
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16

Braeger, Zsuzsanna, and Timo Moritz. "A scale atlas for common Mediterranean teleost fishes." Vertebrate Zoology 66 (December 13, 2016): 275–386. https://doi.org/10.3897/vz.66.e31566.

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Regular body scales of 80 species, belonging to 50 families and 16 orders of marine teleost fishes common in the Mediterranean Sea are described using morphological and morphometric characters. The morphological descriptions are based on the scale's type, shape, features of the anterior, posterior and lateral fields. Further characteristics of the focus, circuli, radii and spines or cteni, if present, are given. Morphometric indices are calculated for scales from the anterior dorsal flank area of each species. As scale shape varies along the body of a given specimen, respective images are prov
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17

WINTERBOTTOM, RICHARD. "A new species of Trimma (Pisces: Gobiidae) from western Thailand, north-eastern Indian Ocean." Zootaxa 4915, no. 2 (2021): 264–72. http://dx.doi.org/10.11646/zootaxa.4915.2.6.

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A new species of Trimma is described from the islands just off the Thailand coast near Phuket. Trimma ukkriti n.sp. lacks scales on the cheek and opercle, but has ctenoid scales in the midline of the nape, has an elongate second spine of the first dorsal fin which reaches posteriorly to between the base of the spine and the base of the 4th ray of the second dorsal fin when adpressed, 19–20 pectoral-fin rays with 6–13 branched rays in the middle of the fin, an unbranched 5th pelvic-fin ray, which is 48–67% the length of the 4th ray, a U-shaped interorbital trench with no fleshy median ridge, a
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18

Ibañez, Ana L., Ian G. Cowx, and Paul O'Higgins. "Geometric morphometric analysis of fish scales for identifying genera, species, and local populations within the Mugilidae." Canadian Journal of Fisheries and Aquatic Sciences 64, no. 8 (2007): 1091–100. http://dx.doi.org/10.1139/f07-075.

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Geometric morphometric methods (GMMs) were used to determine if scale morphology can discriminate between genera, species, geographic variants, and stocks of mullet (Mugilidae). GMMs were used because they allow standard multivariate analyses while preserving information about scale shape, which is important in making biological interpretations of results. The method was tested on ctenoid scales from mullets collected from different areas of the Gulf of Mexico and Aegean Sea. Scales were submitted to generalised procrustes analysis, followed by principal components analysis of resulting shape
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19

Arratia, Gloria, and Katia A. González-Rodríguez. "A New Intriguing Teleost from the Albian Muhi Quarry, Central Mexico, and Early Euteleostean Diversification." Diversity 16, no. 7 (2024): 414. http://dx.doi.org/10.3390/d16070414.

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The Albian Muhi Quarry of Central Mexico has produced a variety of fishes, among which the teleosts are the most diversified, including representatives of stem groups together with a variety of crown groups. A new genus and species, †Xeneichthys yanesi, is described based on a unique combination of characters, such as a dorsoventral elongation and narrowing of infraorbitals 2 and 3, preopercle, opercle, and cleithrum; absence of some bones, such as the infraorbital 5, interopercle, and pelvic plate and fin; presence of an elongated urostyle and a membranous outgrowth or stegural on the first u
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20

MOOI, RANDALL D., and ANTHONY C. GILL. "Description of a new species of the fish genus Acanthoplesiops Regan (Teleostei: Plesiopidae: Acanthoclininae) from Tonga." Zootaxa 432, no. 1 (2004): 1. http://dx.doi.org/10.11646/zootaxa.432.1.1.

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Acanthoplesiops naka sp. n. is described from the 9.9 mm SL holotype collected at Ofolanga Island of the Ha apai Group of Tonga. Its dorsal-fin spine count of XVIII is unique in the genus. The following combination of characters also distinguishes it from congeners: first two dorsal-fin pterygiophores in the 3 rd interneural space (anterior dorsal-fin formula ?/?/I+I/I/I/I/I//I/I/I); 3 dentary pores; 2 intertemporal pores; head and body generally brownish with darker pigment spots (from shrunken melanophores), excepting a paler stripe from the anterior half of the symphyseal flap on the lower
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21

WINTERBOTTOM, RICHARD, SERGEY V. BOGORODSKY, and TILMAN J. ALPERMANN. "A new species of Trimma of the T. taylori species group (Teleostei: Gobiidae) from the Red Sea, Indian Ocean." Zootaxa 5353, no. 3 (2023): 250–64. http://dx.doi.org/10.11646/zootaxa.5353.3.3.

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A new species of Trimma is described from the Red Sea along the Saudi Arabian coast. Specimens and/or photographs of this species are available from the Egyptian Red Sea to Eritrea. These specimens, formerly identified as T. taylori, differ from all other samples from the Indo-Pacific currently identified as T. taylori in having 9 and 8–9 dorsal- and anal-fin rays respectively (vs. usually 10 and 10 rays), 13 pectoral-fin rays (vs. usually 14 rays), and cycloid scales covering the entire predorsal region from the upper base of the pectoral fin anterior to a convex line posterodorsally to just
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22

Mujtahidah, Tholibah, Sri Hidayati, Abdul Qadir Jailani, Annisa Novita Sari, Muhammad Tri Aji, and Eric Armando. "Bioecology and Distribution of Dwarf Snakehead (Channa limbata, Cuvier 1831) Based on Geographic Information System in Progo River, Magelang, Central Java." Journal of Aquaculture and Fish Health 12, no. 3 (2023): 370–80. http://dx.doi.org/10.20473/jafh.v12i3.32191.

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This research was a database collection process to determine the resources of dwarf snakehead C. limbata and found the potential fish resources in the Progo river forming of a zonation map, so it was very necessary to determine the next step in the management of fish resources (domestication efforts) of potential commodities in Magelang. The research was conducted from May to November 2021. Parameters observed were morphometric, length-weight relationship, gonad maturity level, feed, condition factor, and water quality. The tools used in this research were GPS for determining sampling points,
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23

Spinner, Marlene, Clemens F. Schaber, Shao-Min Chen, Marco Geiger, Stanislav N. Gorb, and Hamed Rajabi. "Mechanical behavior of ctenoid scales: Joint-like structures control the deformability of the scales in the flatfish Solea solea (Pleuronectiformes)." Acta Biomaterialia 92 (July 2019): 305–14. http://dx.doi.org/10.1016/j.actbio.2019.05.011.

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24

TEA, YI-KAI, and ANTHONY C. GILL. "Systematic reappraisal of the anti-equatorial fish genus Microcanthus Swainson (Teleostei: Microcanthidae), with redescription and resurrection of Microcanthus joyceae Whitley." Zootaxa 4802, no. 1 (2020): 41–60. http://dx.doi.org/10.11646/zootaxa.4802.1.3.

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The taxonomy and classification of the microcanthid fish genus Microcanthus Swainson has been a subject of contention dating back to the 19th century. Its allopatric, disjunct anti-equatorial distribution across the Indo-West Pacific has resulted in the recognition of several nominal taxa, though these have been widely regarded as synonyms of Microcanthus strigatus (Cuvier). Following the results published in a companion study elsewhere by the authors, the taxonomy of Microcanthus and the validity of these nominal synonyms are herewith revised. Microcanthus strigatus is redescribed on the basi
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25

JOHNSON, JEFFREY W., and WILLIAM T. WHITE. "Parapercis pariomaculata (Perciformes: Pinguipedidae), a new species of sandperch from Lombok and Bali, Indonesia and remarks on the validity of P. quadrispinosa (Weber 1913)." Zootaxa 3319, no. 1 (2012): 57. http://dx.doi.org/10.11646/zootaxa.3319.1.2.

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A new species of pinguipedid fish, Parapercis pariomaculata, is described from seven specimens collected from Lombok andthe southeast coast of Bali, Indonesia. The species appears locally common, having also been photographed underwater in sev-eral other locations off Bali. It is most similar to Parapercis clathrata in morphology, colouration and meristic values, but isunique among the genus in having a combination of dorsal-fin rays IV, 21, anal-fin rays I, 17, lateral-line scales 57–58, vomerwith 2–4 rows of robust conical teeth, palatines edentate, angle of subopercle produced and with smal
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26

Allen, Gerald R., Mark V. Erdmann, and William M. Brooks. "Callogobius swifti, a new goby (Teleostei: Gobiidae) from Papua New Guinea." Journal of the Ocean Science Foundation, no. 35 (July 29, 2020): 86–93. https://doi.org/10.5281/zenodo.3963684.

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A new species of gobiid fish, <em>Callogobius swifti</em>, n. sp. is described from five specimens 15.5&ndash;23.4 mm SL, collected from coastal reef slopes in 40&ndash;65 m depth at Milne Bay Province, Papua New Guinea. Diagnostic features include: segmented dorsal-fin rays 9; segmented anal-fin rays 8; lateral scales 21 or 22; predorsal scales 7 or 8; cephalic sensory-canal pores reduced, with only posterior nasals (B&rsquo;), posterior interorbital (D), anterior otics (F), and intertemporals (H&rsquo;); cephalic sensory papillae rows 20 and 21 separate and 10 transverse mandibular papillae
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27

ZAREI, FATAH, SAUD M. AL JUFAILI, and HAMID REZA ESMAEILI. "Oxyurichthys omanensis sp. nov., a new Eyebrow Goby (Teleostei: Gobiidae) from Oman." Zootaxa 5182, no. 4 (2022): 361–76. http://dx.doi.org/10.11646/zootaxa.5182.4.3.

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Oxyurichthys omanensis sp. nov. is described as a new gobiid species from a mudflat/estuary habitat in northern Oman. The new species is diagnosed among all currently recognised congeners by the following combination of character states: elongate tentacle on dorsoposterior surface of the eye; nape with well-developed membranous crest; nape scaled to above anterior half of opercle along sides with naked median along membranous crest, scales never reaching to above preopercle; opercle and pectoral base naked; scales ctenoid laterally on trunk posterior to base of second dorsal fin 3rd element; l
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28

CHAO, NING LABBISH, CHIH-WEI CHANG, MENG-HSIEN CHEN, et al. "Johnius taiwanensis, a new species of Sciaenidae from the Taiwan Strait, with a key to Johnius species from Chinese waters." Zootaxa 4651, no. 2 (2019): 259–70. http://dx.doi.org/10.11646/zootaxa.4651.2.3.

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A new sciaenid fish, Johnius taiwanensis, is described from the southeast coast of mainland China from Zhejiang to Guangdong, Hong Kong, and west coast of Taiwan. Johnius taiwanensis sp. nov. can be distinguished from other Johnius species by having a grayish dorsal half of body divided by a clear line from a whitish ventral half, and a black spot at the dorsal half of pectoral-fin axil, appearing as a distinct dot at the most dorsal point of the pectoral-fin base. First dorsal fin black tipped, other fins pale to dusky but never darkly pigmented. The species lacks distinctly enlarged teeth on
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29

Allen, Gerald R., Mark V. Erdmann, and William D. Brooks. "Vanderhorstia vandersteene, a new species of shrimpgoby (Pisces: Gobiidae) from Papua New Guinea." Journal of the Ocean Science Foundation 35 (July 25, 2020): 65–75. https://doi.org/10.5281/zenodo.3959464.

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A new species of gobiid fish, <em>Vanderhorstia vandersteene</em>, is described from the East Cape region of Milne Bay Province, Papua New Guinea on the basis of five specimens 17.5&ndash;32.2 mm SL. Diagnostic features include dorsal-fin elements VI-I,10&ndash;12; the fourth dorsal-fin spine filamentous, reaching the base of about the fifth to seventh segmented dorsal-fin ray when adpressed; anal-fin rays I,11; pectoral-fin rays 16&ndash;18; lateral scales 35&ndash;37; transverse scales 10; body scales mostly ctenoid, except cycloid scales anterior to the level of about the second-dorsal-fin
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30

He, Xixing, Yihe Liu, Haiyang Zhan, Yahua Liu, Lei Zhao, and Shile Feng. "Bidirectional Underwater Drag Reduction on Bionic Flounder Two-Tier Structural Surfaces." Biomimetics 8, no. 1 (2023): 116. http://dx.doi.org/10.3390/biomimetics8010116.

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Engineering marvels found throughout the exclusive structural features of biological surfaces have given rise to the progressive development of skin friction drag reduction. However, despite many previous works reporting forward drag reduction where the bio-inspired surface features are aligned with the flow direction, it is still challenging to achieve bidirectional drag reduction for non-morphable surface structures. Inspired by the flounder ctenoid scales characterized by tilted, millimeter-sized oval fins embedded with sub-millimeter spikes, we fabricate a bionic flounder two-tier structur
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31

Randall, John E., Sergey V. Bogorodsky, Tilman J. Alpermann, Ukkrit Satapoomin, Randall D. Mooi, and Ahmad O. Mal. "Pempheris flavicycla, a new pempherid fish from the Indian Ocean, previously identified as P. vanicolensis Cuvier." Journal of the Ocean Science Foundation 9 (December 31, 2013): 1–23. https://doi.org/10.5281/zenodo.1041976.

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Pempheris flavicycla is described as a new species of sweeper (Perciformes: Pempheridae) from the Indian Ocean, including the Red Sea. It has a bright yellow ring around the pupil of the eye, a black outer border on the anal and caudal fins, a black spot at the base of the pectoral fins, 38–44 anal soft rays, 54–61 lateral-line scales, and 29–33 gill rakers. It is found in clear-water, coral-reef areas not exposed to heavy seas, and usually in less than 15 m. Two subspecies are recognized: Pempheris flavicycla flavicycla from Oman, Tanzania (type locality Mafia Island), Kenya (Wasini Island),
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32

OKAMOTO, MAKOTO, and OFER GON. "A review of the deepwater cardinalfish genus Epigonus (Perciformes: Epigonidae) of the Western Indian Ocean, with description of two new species." Zootaxa 4382, no. 2 (2018): 261. http://dx.doi.org/10.11646/zootaxa.4382.2.3.

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The fishes of the genus Epigonus Rafinesque, 1810 in the Western Indian Ocean (including the Red Sea and the Gulf of Aden) are reviewed. Twelve species of the genus are recognized: Epigonus angustifrons Abramov &amp; Manilo, 1987; E. denticulatus Dieuzeide, 1950; E. elongatus Parin &amp; Abramov, 1986; E. exodon Okamoto &amp; Motomura, 2012; E. lenimen (Whitley, 1935); E. macrops (Brauer, 1906); E. marimonticolus Parin &amp; Abramov, 1986; E. marisrubri Krupp, Zajonz &amp; Khalaf, 2009; E. pectinifer Mayer, 1974; E. robustus (Barnard, 1927); E. telescopus (Risso, 1810); E. waltersensis Parin &
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33

David, Bruno, Bertrand Lefebvre, Rich Mooi, and Ronald Parsley. "Are homalozoans echinoderms? An answer from the extraxial-axial theory." Paleobiology 26, no. 4 (2000): 529–55. http://dx.doi.org/10.1666/0094-8373(2000)026<0529:aheaaf>2.0.co;2.

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Homalozoans include four classes of non-pentamerous Paleozoic echinoderms: Homostelea (cinctans), Ctenocystoidea (ctenoid-bearing homalozoans), Homoiostelea (solutes), and Stylophora (cornutes and mitrates). Their atypical morphologies have historically made it difficult to relate them to other classes. Therefore, their systematic positions have been represented by two hypotheses (H): as stem taxa to echinoderms (H1) or as stem taxa to chordates (H2). These conclusions rest on previous inability to recognize synapomorphies with more crownward echinoderms, resulting in a forcing of the homalozo
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34

Valen, Fitri Sil, Mustobi Prananda, Qothrunnada Qothrunnada, et al. "STUDI MORFOMETRIK DAN MERISTIK BARBODES SELLIFER (Kottelat & Lim 2021) (CYPRINIFORMES; CYPRINIDAE) SEBAGAI TAHAP AWAL DOMESTIKASI." Journal of Aquatropica Asia 7, no. 2 (2022): 92–98. http://dx.doi.org/10.33019/joaa.v7i2.3500.

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Barbodes sellifer merupakan merupakan ikan air tawar dari keluarga cyprinid. Spesies ini pertama kali dideskripsikan pada tahun 2021 oleh Kottelat dan Lim. Saat ini spesies Barbodes sellifer dapat ditemukan di Singapore dan malaysia. Di Indonesia sendiri barbodes sellifer ditemukan di Sumatera, Kepulauan Riau hingga pulau Natuna. Kehadiran Barbodes sellifer di Kepulauan Bangka merupakan catatan baru. Meskipun spesies ini dapat ditemukan di Pulau Bangka, namun jumlahnya tidak banyak, sehingga perlu dilakukan upaya-upaya domestifikasi untuk mempertahankan populasi. Agar kegiatan domestifikasi da
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35

OKAMOTO, JO, and HIROYUKI MOTOMURA. "Redescription of Brachirus aspilos (Bleeker 1852), a senior synonym of four nominal species, with a note on the distribution of Dagetichthys marginatus (Boulenger 1900) (Pleuronectiformes: Soleidae)." Zootaxa 4908, no. 3 (2021): 354–68. http://dx.doi.org/10.11646/zootaxa.4908.3.2.

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The poorly known sole Brachirus aspilos (Bleeker 1852) is redescribed on the basis of the holotype and 48 non-type specimens from Japan, Taiwan, Philippine, Singapore, Indonesia, Papua New Guinea, and Australia. The species is characterized by the following combination of characters: dorsal-fin rays 64–76 (mode 71), anal-fin rays 51–62 (56), pored scales on straight portion of lateral line 93–126 (118); vertebrae 41–44 (43); pectoral-fin rays 4–7 (6) and 4–7 (5) on ocular and blind sides, respectively; pelvic-fin rays 4–6 (5) and 4–5 (4) on ocular and blind sides, respectively; caudal-fin rays
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36

Kingsford, MJ, and MH Atkinson. "Increments in otoliths and scales: How they relate to the age and early development of reared and wild larval and juvenile Pagrus auratus (Sparidae)." Marine and Freshwater Research 45, no. 6 (1994): 1007. http://dx.doi.org/10.1071/mf9941007.

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The utility of otoliths and scales for age and growth studies on Northern and Southern Hemisphere forms of Pagrus auratus (&lt;I00 days old) was investigated. A series of illustrations shows the developmental morphology of wild southern larvae at ages ranging from 0 to 40 days. Reared P. Auratus (of both forms) deposited daily increments in otoliths from or within 1 day of the time of hatching until the age of 40 days. Age-length relationships of wild P auratus (2.4-8.5 mm standard length, SL) from northern New Zealand (1985-86) were not significantly different among times and there was little
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37

Epitashvili, Giorgi, Bella Japoshvili, and Levan Mumladze. "Ponticola alasanicus sp. n. (Gobiiformes, Gobiidae) from the Alazani River Basin, Georgia." Biodiversity Data Journal 11 (May 30, 2023): e101095. https://doi.org/10.3897/BDJ.11.e101095.

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The South Caucasus Region and Georgia, in particular, is a biodiversity hotspot and characterised by high diversity of landscapes and ecosystems, as well as high levels of endemism. At the same time, diversity of freshwater organisms in the region remains poorly studied, including fishes. The freshwater fish fauna of the South Caucasus Region consists of 119 fish species, of which 13 species belong to the order Gobiiformes. It should be noted that gobies are amongst the poorly studied taxa in Georgia and probably unknown/undescribed species still living in the Georgian freshwater ecosystems wh
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38

Allen, Gerald R. "Descriptions of two new species of shrimpgobies (Gobiidae: Cryptocentrus and Tomiyamichthys) from Papua New Guinea." Journal of the Ocean Science Foundation 16 (August 18, 2015): 67–81. https://doi.org/10.5281/zenodo.1021435.

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Two new species of alpheid-shrimp-associated gobies are described from Milne Bay Province, Papua New Guinea. <em>Cryptocentrus epakros</em> n. sp. is described from a single female specimen, 34.2 mm SL. Diagnostic features include 47 longitudinal scales (most species in the genus with more than 70), scales entirely cycloid, and the seventh and eighth anal-fin rays prolonged to form a distinctly pointed posterior anal-fin profile. It also possesses a unique color pattern featuring six brown bars with yellowish interspaces, vertical orange markings on the dorsal fins, a dusky brown anal fin exce
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39

SIDOROV, DMITRY. "Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a large-scale biogeographical context." Zootaxa 5357, no. 3 (2023): 342–74. http://dx.doi.org/10.11646/zootaxa.5357.3.2.

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This study examines nineteen phreatobiological hand pump samples collected in 2009–2010 in three separate areas of salmon river basins in the southern part of Primorye, in the Far East of Russia. For the first time, faunal groundwater patterns were assessed for the rivers of Eastern Manchuria, the Ussury River Basin and the rivers of the south-western slope of Sikhote Alin. A total of 164 species (including 32 stygobionts) belonging to the phyla Annelida, Mollusca and Arthropoda are first records of groundwater animals, and two of the stygobionts are described below as new species for Science.
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40

JOHNSON, JEFFREY W., and HIROYUKI MOTOMURA. "Five new species of Parapercis (Perciformes: Pinguipedidae) from southeast Asia and northwest Australia." Zootaxa 4320, no. 1 (2017): 121. http://dx.doi.org/10.11646/zootaxa.4320.1.7.

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Five new species of sandperch (Pinguipedidae: Parapercis) from southeast Asia and northwest Australia are described. Parapercis soliorta sp. nov., known from a single specimen acquired from the Iloilo Central Market, taken off Iloilo, Panay Island, Philippines, is readily distinguished by a unique colour pattern including a series of nine brilliant yellow-ringed red spots along the body and caudal fin. Parapercis rubricaudalis sp. nov. is described from 15 specimens trawled between Dampier and Cape Leveque, Western Australia in 70–119 m and a single specimen taken by aquarium fish collectors o
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41

Zopf, L. M., A. Schmid, D. Fredman, and B. J. Eriksson. "Spectral sensitivity of the ctenid spider Cupiennius salei." Journal of Experimental Biology 216, no. 21 (2013): 4103–8. http://dx.doi.org/10.1242/jeb.086256.

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42

Hazzi, Nicolás A., Carlos Valderrama-Ardila, Daniele Polotow Antonio D. Brescovit, and Miguel Simó. "New records and geographical distribution of ctenid spiders (Araneae: Ctenidae) in Colombia." Zootaxa 3709, no. 3 (2013): 243–54. https://doi.org/10.11646/zootaxa.3709.3.3.

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Hazzi, Nicolás A., Valderrama-Ardila, Carlos, Brescovit Daniele Polotow, Antonio D., Simó, Miguel (2013): New records and geographical distribution of ctenid spiders (Araneae: Ctenidae) in Colombia. Zootaxa 3709 (3): 243-254, DOI: 10.11646/zootaxa.3709.3.3
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43

Allen, Gerald R. "Four new species of Trimma (Pisces: Gobiidae) from Papua New Guinea and Indonesia." Journal of the Ocean Science Foundation 14 (March 8, 2015): 28–48. https://doi.org/10.5281/zenodo.1037603.

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Four new species belonging to the gobiid genus Trimma are described from the Indo-Australian Archipelago. Trimma abyssum is described from two specimens, 28.8–31.6 mm SL, collected in 107 m depth at Siladen Island, North Sulawesi, Indonesia. Diagnostic features include the combination of 7–8 segmented dorsal rays, the second and third spines longest with short filamentous tips reaching base of first two segmented rays of the second dorsal fin when adpressed; anal rays I,8; pectoral rays 16, all unbranched; unbranched fifth pelvic ray 48–55% length of fourth pelvic ray; bony interorbital 53–65%
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44

LAND, M. F., and F. G. BARTH. "THE QUALITY OF VISION IN THE CTENID SPIDER CUPIENNIUS SALEI." Journal of Experimental Biology 164, no. 1 (1992): 227–42. http://dx.doi.org/10.1242/jeb.164.1.227.

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Much is known about the mechanosensory behaviour of the spider Cupiennius Keyserling, but much less about its visual capabilities. In this study the quality of the optical image, the retinal resolution and the fields of view were assessed for each of the four pairs of eyes. The image is of good quality in all eyes. The principal (antero-median) eyes lack a tapetum and have an inter-receptor angle of 2.9°. The three secondary eyes (antero-lateral, postero-median and posterolateral) all have ‘gridiron’ tapeta with receptors arranged in rows. The angular separations (along rows × between rows) ar
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45

SANKARAN, PRADEEP M., and POTHALIL A. SEBASTIAN. "First record of Africactenus Hyatt, 1954 and redescriptions of two poorly known species of Ctenus Walckenaer, 1805 (Araneae, Ctenidae, Cteninae) from India." Zootaxa 4388, no. 3 (2018): 395. http://dx.doi.org/10.11646/zootaxa.4388.3.5.

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The ctenid genus Africactenus Hyatt, 1954 is recorded for the first time from India. Africactenus unumus sp. nov. is described and illustrated based on male specimens. Detailed redescriptions and illustrations of Ctenus cochinensis Gravely, 1931 (both male and female) and Ctenus indicus Gravely, 1931 (only female) are provided and their distribution in India is updated.
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46

POLOTOW, DANIELE, and ANTONIO D. BRESCOVIT. "Revision of the new wandering spider genus Ohvida and taxonomic remarks on Celaetycheus Simon, 1897 (Araneae: Ctenidae)." Zootaxa 2115, no. 1 (2009): 1–20. http://dx.doi.org/10.11646/zootaxa.2115.1.1.

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The new ctenid genus Ohvida is proposed to include eight species: Ohvida fulvorufa (Franganillo, 1931) comb. nov. (type species) (= Celaetycheus cabriolatus Franganillo, 1930 syn. nov.; = C. cabriolatus pardosiformis Franganillo, 1930 syn. nov.; = C. fulvorufus afoliatus Franganillo, 1931 syn. nov.), O. isolata (Bryant, 1940) comb. nov., O. vernalis (Bryant, 1940) comb. nov., O. brevitarsus (Bryant, 1940) comb. nov., O. coxanus (Bryant, 1940), comb. nov., and three new species, O. turquino sp. nov. (all species from Cuba), and O. andros sp. nov. and O. bimini sp. nov. (both species from The Ba
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47

Cox, G. W., and V. G. Roig. "Argentinian Mima Mounds Occupied by Ctenomyid Rodents." Journal of Mammalogy 67, no. 2 (1986): 428–32. http://dx.doi.org/10.2307/1380907.

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48

Hantak, Maggie M., Daniel J. Paluh, and Ralph A. Saporito. "Bufadienolide and alkaloid-based chemical defences in two different species of neotropical anurans are equally effective against the same arthropod predators." Journal of Tropical Ecology 32, no. 2 (2016): 165–69. http://dx.doi.org/10.1017/s0266467416000055.

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Abstract:Defensive chemicals in anuran skin secretions function in protection against potential predators. Although studies have demonstrated that particular chemicals are effective against certain predators, very little is known about how different chemicals from different species function against the same predators. Understanding how different chemicals function as a defence against similar predators is fundamental to the ecology and evolution of chemical defences in frogs. In the present study, the defensive function of bufadienolide-based defences in adult Rhaebo haematiticus (Bufonidae) w
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49

PÁDUA, DIEGO G., ISAMARA SILVA-SANTOS, BERNARDO F. SANTOS, MAYARA D. FAUSTINO-MAGALHÃES, MARIA N. A. SOUZA, and THIAGO G. KLOSS. "The Darwin wasp Camera thoracica (Szépligeti, 1916) (Ichneumonidae) as a natural enemy of the dreaded Brazilian wandering spider Phoneutria nigriventer (Keyserling, 1891) (Ctenidae)." Zootaxa 5403, no. 4 (2024): 459–68. http://dx.doi.org/10.11646/zootaxa.5403.4.4.

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Wandering spiders (genus Phoneutria) hold a prominent position as some of the world’s most medically significant venomous arachnids, especially in Brazil. In this study, we record and illustrate for the first time, the Darwin wasp Camera thoracica (Szépligeti, 1916) as a natural enemy of the ctenid Phoneutria nigriventer (Keyserling, 1891). Furthermore, we provide a description of the previously unknown male wasp, update and standardize the description of the female, and provide biological notes.
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50

Mikkelsen, Paula M., and Rüdiger Bieler. "Systematic revision of the western Atlantic file clams, Lima and Ctenoides (Bivalvia : Limoida : Limidae)." Invertebrate Systematics 17, no. 5 (2003): 667. http://dx.doi.org/10.1071/is03007.

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Marine file clams of family Limidae d'Orbigny, 1846 (+ Radulidae Adams &amp; Adams), characterised by their often colourful mantle and pallial tentacles and by swimming behaviour, are commonly collected and illustrated bivalves. Based on new material from an extensive Florida Keys biodiversity survey plus museum and literature data, western Atlantic species of Lima Bruguière, 1797 (+ Mantellum R�ding; Radula M�rch; Limaria Rafinesque; Austrolima Iredale; Meotolima Oyama) and Ctenoides M�rch, 1853 (+ Divaricolima Rovereto) are revised. Lima includes L. marioni Fischer, 1882 (+ L. lata Smith; le
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