Academic literature on the topic 'Ctenoid'

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Journal articles on the topic "Ctenoid"

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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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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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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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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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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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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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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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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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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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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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Dissertations / Theses on the topic "Ctenoid"

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Garcias, Felipe Maia. "Aspectos da ecologia populacional do tuco-tuco-das-dunas (TRAVI, 1981) (Ctenomis flamarioni - RODENTIA - CTENOMYDAE) na Estação Ecológica do Taim, Rio Grande do Sul, Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2013. http://hdl.handle.net/10183/84958.

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Aspectos da ecologia populacional do tuco-tuco-das-dunas (Ctenomys flamarioni) foram estudados na região costeira da Estação Ecológica do Taim, com o objetivo de determinar características ecológicas, como a estrutura populacional e o tamanho e a forma da área de vida (home-range), utilizando a radiotelemetria numa população de Ctenomys flamarioni. O estudo foi desenvolvido entre dezembro de 2011 a março de 2013, foram realizadas 06 campanhas a cada trimestre de acordo com as estações sazonais com duração de quatro dias consecutivos. A extensão da área de estudo definida abrangeu uma área de 6
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Books on the topic "Ctenoid"

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Davila, Diana Silva. Higher-level relationships of the spider family Ctenidae (Araneae: Ctenoidea). American Museum of Natural History, 2003.

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Davila, Diana Silva. Higher-level relationships of the spider family Ctenidae (Araneae, Ctenoidea). American Museum of Natural History, 2003.

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Davila, Diana Silva. Higher-level relationships of the spider family Ctenidae (Araneae, Ctenoidea). American Museum of Natural History, 2003.

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Main, Barbara York. Further studies of the systematics of Ctenizid trapdoor spiders: A review of the Australian genera (Araneae, Mygalomorphae, Ctenizidae). Commonwealth Scientific and Industrial Research Organization, 1985.

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Main, Barbara York. Further studies on the systematics of Ctenizid trapdoor spiders: A review of the Australian genera (Araneae, Mygalomorphae, Ctenizidae). Commonwealth Scientific and Industrial Research Organization, 1985.

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Hanky, Václava. Ctenie Nikodemovo. Creative Media Partners, LLC, 2023.

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Sokol, Jan. cteni z bible (ceska biblicka spolecnost). Praha, 1995.

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Jednolisty. Kramarske tisky. Knizky lidoveho cteni. Vyberova bibliografie. 2007.

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Ivanov, Miroslav. 52+2: Cteni pro kazdy tyden v roce a dva navic. Vydavatelstvi 999, 1999.

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Book chapters on the topic "Ctenoid"

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"ctenoid counterpart." In Dictionary Geotechnical Engineering/Wörterbuch GeoTechnik. Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-41714-6_35915.

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"ctenoid, adj. & n." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/4278608826.

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"cteno-, comb. form." In Oxford English Dictionary, 3rd ed. Oxford University Press, 2023. http://dx.doi.org/10.1093/oed/1245867923.

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Čudakov, Aleksandr P. "Medlennoe ctenie "Evgenija Onegina" kak kurs vvedenija v literaturovedenie." In Analysieren als Deuten. Hamburg University Press, publishing house of the Hamburg State and University Library, 2004. http://dx.doi.org/10.15460/hup.89.646.

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Vassallo, Aldo I., and Matías S. Mora. "Interspecific Scaling and Ontogenetic Growth Patterns of the Skull in Living and Fossil Ctenomyid and Octodontid Rodents (Caviomorpha: Octodontoidea)Efecto Del Tamaño Entre Especies Y Patrón De Crecimiento Ontogenético Del Cráneo En Roedores Ctenómidos Y Octodóntidos (Caviomorpha: Octodontoidea)." In The Quintessential NaturalistHonoring the Life and Legacy of Oliver P. Pearson. University of California Press, 2007. http://dx.doi.org/10.1525/california/9780520098596.003.0029.

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