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Journal articles on the topic 'Characidés'

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1

Oliveira, Cristina L. C. de, Luiz R. Malabarba, and John R. Burns. "Comparative morphology of gill glands in externally fertilizing and inseminating species of cheirodontine fishes, with implications on the phylogeny of the family Characidae (Actinopterygii: Characiformes)." Neotropical Ichthyology 10, no. 2 (2012): 349–60. http://dx.doi.org/10.1590/s1679-62252012005000005.

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The structure and form of gill gland among inseminating and externally fertilizing species of the Cheirodontinae are described under light microscopy, scanning electron microscopy, and transmission electron microscopy, and compared to other members of the family Characidae. At least one species from thirteen cheirodontine genera were analyzed, totaling seventeen species. Gill glands were found in all analyzed mature males of Cheirodontinae and were always absent in females, being located on the anteriormost portion of the lower branch of the first gill arch, extending posteriorly through a var
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2

Weitzman, Stanley H., Naércio A. Menezes, Hans-Georg Evers, and John R. Burns. "[NO TITLE AVAILABLE]." Neotropical Ichthyology 3, no. 3 (2005): 329–60. http://dx.doi.org/10.1590/s1679-62252005000300002.

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A new inseminating fish species of the family Characidae, Bryconadenos tanaothoros, from tributaries of the upper rio Xingu and upper rio Tapajós basins, Mato Grosso, Brazil is described as the type species of a new genus. This new species and the genus are characterized by a glandular organ on the anterior region of the anal fin of sexually mature males, curved lower jaw teeth, and an inseminating reproductive mode. This new genus is hypothesized as most closely related to Attonitus, a genus with three inseminating species from Peru. Bryconadenos and Attonitus are suggested as related to cert
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3

MENEZES, NAÉRCIO A., KATIANE M. FERREIRA, and ANDRÉ LUIZ NETTO-FERREIRA. "A new genus and species of inseminating characid fish from the rio Xingu basin (Characiformes: Characidae)." Zootaxa 2167, no. 1 (2009): 47–58. http://dx.doi.org/10.11646/zootaxa.2167.1.3.

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Phallobrycon adenacanthus, is described as a new genus and species belonging to Clade A characids of Malabarba & Weitzman (2003). The new taxon is the only characid possessing two developed spines on unbranched portions of fifth, sixth and seventh anal-fin rays associated with intumescent glandular tissue on the anterior portion of the anal fin of sexually mature males. Other non-exclusive diagnostic features of the new genus (observed in male specimens) are: urogenital papilla modified into a copulatory organ, absence of pelvic-fin hooks and glandular tissue not organized into an organ. T
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4

Azevedo, Marco A., Luiz R. Malabarba, and John R. Burns. "Reproductive biology and development of gill glands in the inseminating characid, Macropsobrycon uruguayanae Eigenmann, 1915 (Cheirodontinae: Compsurini)." Neotropical Ichthyology 8, no. 1 (2010): 87–96. http://dx.doi.org/10.1590/s1679-62252010005000004.

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The reproductive biology and development of the gill gland are described for Macropsobrycon uruguayanae, an inseminating characid species of the tribe Compsurini, subfamily Cheirodontinae. Between April 2001 and March 2002, 117 males and 143 females of this species were collected in the rio Ibicuí, Uruguay basin in the State of Rio Grande do Sul, Brazil. Reproductively active individuals were present during most months sampled, indicating lack of a well-defined seasonal reproductive period. Several maturing females were found to be inseminated before completing full maturation. Histological an
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5

Arefjev, V. A. "Karyotypic Diversity of Characid Families (Pisces, Characidae)." Caryologia 43, no. 3-4 (1990): 291–304. http://dx.doi.org/10.1080/00087114.1990.10797008.

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6

Echi, P. C., and H. M. G. Ezenwaji. "The parasite fauna of characids’ (Osteichthyes: Characidae) Anambra River, Nigeria." African Journal of Ecology 48, no. 1 (2010): 1–4. http://dx.doi.org/10.1111/j.1365-2028.2009.01030.x.

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7

Azevedo, Marco A. "Reproductive characteristics of characid fish species (Teleostei, Characiformes) and their relationship with body size and phylogeny." Iheringia. Série Zoologia 100, no. 4 (2010): 469–82. http://dx.doi.org/10.1590/s0073-47212010000400020.

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In this study, I investigated the reproductive biology of fish species from the family Characidae of the order Characiformes. I also investigated the relationship between reproductive biology and body weight and interpreted this relationship in a phylogenetic context. The results of the present study contribute to the understanding of the evolution of the reproductive strategies present in the species of this family. Most larger characid species and other characiforms exhibit a reproductive pattern that is generally characterized by a short seasonal reproductive period that lasts one to three
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8

ZANATA, ANGELA M., FLÁVIO C. T. LIMA, FABIO DI DARIO, and PEDRO GERHARD. "A new remarkable and Critically Endangered species of Astyanax Baird & Girard (Characiformes: Characidae) from Chapada Diamantina, Bahia, Brazil, with a discussion on durophagy in the Characiformes." Zootaxa 4232, no. 4 (2017): 491. http://dx.doi.org/10.11646/zootaxa.4232.4.2.

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Astyanax brucutu is described from the rio Pratinha, rio Paraguaçu basin, Bahia, Brazil. The new species is promptly distinguished from other characids by having four, rarely three, robust, rounded, and usualy tricuspid teeth on inner premaxillary series and similar teeth on dentary. The species is furthermore characterized by a series of unusual character states in the Characidae, including head blunt in lateral and dorsal views, longitudinal foreshortening of lower jaw, ventral margin of third infraorbital distinctly separated from horizontal limb of preopercle, leaving a broad area without
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9

Devitsina, G. V., and T. V. Golovkina. "Structural Organization of the Taste Apparatus in Characins (Characidae, Teleostei)." Journal of Ichthyology 58, no. 1 (2018): 59–72. http://dx.doi.org/10.1134/s0032945218010046.

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10

Zago, Aline Cristina, Lidiane Franceschini, Maria Isabel Müller, and Reinaldo José da Silva. "A new species of Cacatuocotyle (Monogenea, Dactylogyridae) parasitizing Astyanax spp. (Characiformes, Characidae) from Brazil, including molecular data and a key to species identification." Acta Parasitologica 63, no. 2 (2018): 261–69. http://dx.doi.org/10.1515/ap-2018-0030.

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Abstract The present study describes Cacatuocotyle papilionis n. sp. (Monogenea, Dactylogyridae) from the skin of the characid fishes Astyanax lacustris (Lütken, 1875) (=Astyanax altiparanae Garutti & Britski, 2000) and Astyanax fasciatus (Cuvier, 1819) (Characiformes, Characidae) from the Southeast of Brazil, supported by morphological and molecular data. The new species differs from all congeners, mainly due to the morphology of the ventral bar (resembling a butterfly), accessory piece, and the number of rings of the male copulatory organ (MCO), comprising a coiled tube with 4.5-5.5 coun
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11

Zanata, Angela M., and Alberto Akama. "Myxiops aphos, new characid genus and species (Characiformes: Characidae) from the rio Lençóis, Bahia, Brazil." Neotropical Ichthyology 2, no. 2 (2004): 45–54. http://dx.doi.org/10.1590/s1679-62252004000200001.

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Myxiops aphos, new genus and species, is described from a river in the eastern portion of Bahia State, Brazil. Myxiops is distinguished from all other characid genera by the combination of the following features: infraorbitals fused in a unique fashion, resulting always in less than six autogenous bones; a single tooth row in the premaxilla; presence of somewhat pedunculate teeth, expanded and compressed distally, with cusps similar in shape and perfectly aligned along distal margin; ventral margin of toothed portion of maxillary curved towards ventral margin of premaxilla and maxillary teeth
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12

Bertaco, Vinicius A., and Paulo H. F. Lucinda. "Astyanaxelachylepis, a new characid fish from the rio Tocantins drainage, Brazil (Teleostei: Characidae)." Neotropical Ichthyology 3, no. 3 (2005): 389–94. http://dx.doi.org/10.1590/s1679-62252005000300006.

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A new characid species, Astyanax elachylepis, is described from the rio Tocantins drainage. The new species is distinguished from its congeners by possessing 48-53 perforated scales along the lateral line, a large caudal-peduncle spot, the presence of bony hooks on dorsal, anal, pelvic, and pectoral fins of males, one or two vertically-elongated humeral spots, one maxillary tooth, and 22-27 branched anal-fin rays.
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13

Pecio, Anna, John R. Burns, and Stanley H. Weitzman. "Comparison of spermiogenesis in the externally fertilizing Hemigrammus erythrozonus and the inseminating Corynopoma riisei (Teleostei: Characiformes: Characidae)." Neotropical Ichthyology 5, no. 4 (2007): 457–70. http://dx.doi.org/10.1590/s1679-62252007000400005.

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Spermiogenesis and sperm ultrastructure were analyzed in two species of characids with different modes of fertilization: externally fertilizing Hemigrammus erythrozonus and inseminating Corynopoma riisei. Spermiogenesis in H. erythrozonus is characterized by lateral development of the flagellum, nuclear rotation, formation of a shallow nuclear fossa, condensation of the chromatin by elimination of the electron-lucent area from the peripheral region of the nucleus, and renewal of the nuclear membrane. Multilammelated membrane and multivesicular bodies were also observed during elimination of th
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14

Bertaco, Vinicius A., and Tiago P. Carvalho. "A new characid fish, Hyphessobryconhexastichos (Characiformes: Characidae) from Chapada dos Parecis, Mato Grosso, Brazil." Neotropical Ichthyology 3, no. 3 (2005): 439–43. http://dx.doi.org/10.1590/s1679-62252005000300013.

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A new characid species, Hyphessobrycon hexastichos, is described from the upper rio Tapajós, Mato Grosso, Brazil. The new species is distinguished from all other Hyphessobrycon species by the presence of black zigzag longitudinal lines between longitudinal rows of scales in the lateral of body, maxilla with 3-5 teeth, i,6 pelvic-fin rays, 18-22 branched anal-fin rays, 4 scale rows above and 3 scale rows below of lateral line, lateral line with 9-13 perforated scales, and 33-35 scales in a longitudinal series.
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15

Lima, Flávio C. T., Wolmar B. Wosiacki, and Cristiane S. Ramos. "Hemigrammus arua, a new species of characid (Characiformes: Characidae) from the lower Amazon, Brazil." Neotropical Ichthyology 7, no. 2 (2009): 153–60. http://dx.doi.org/10.1590/s1679-62252009000200004.

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A new Hemigrammus species is described from tributaries of the igarapé Juruti Grande and rio Arapiuns, lower rio Amazonas, Pará State, Brazil. The new species can be easily diagnosed from all its congeners, except from Hemigrammus stictus (Durbin), by possessing a single, large humeral spot which extends longitudinally from the fifth or sixth to the posterior margin of eighth to tenth, lateral line scales. It can be distinguished from Hemigrammus stictus by possessing a pronounced upper, anteriorly-oriented extension in the humeral blotch, conferring an inverted-comma shape to it, and by displ
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16

Moreira, Cristiano R., and Flávio C. T. Lima. "On the name of the lepidophagous characid fish Roeboexodon guyanensis (Puyo) (Teleostei: Characiformes: Characidae)." Neotropical Ichthyology 9, no. 2 (2011): 313–16. http://dx.doi.org/10.1590/s1679-62252011000200007.

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The arguments for the usage of the names Gnathoplax, Roeboexodon, R. geryi, and R. guyanensis are revised. Based on the literature and museum specimens, we recommend that the neotype of Exodon guyanensis should be considered valid; that the genus Gnathoplax should be considered an objective junior synonym of Roeboexodon; and that Roeboexodon geryi should be considered an objective junior synonym of Exodonguyanensis.
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17

Marinho, Manoela M. F., and José L. O. Birindelli. "Redescription of Astyanax multidensEigenmann, 1908 (Characiformes: Characidae), a small characid of the Brazilian Amazon." Neotropical Ichthyology 11, no. 1 (2013): 45–54. http://dx.doi.org/10.1590/s1679-62252013000100005.

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Astyanax multidensis redescribed based on syntypes and additional specimens from the rio Amazonas at Silves, Amazonas State and Óbidos, Pará State, and the rios Trombetas, Tapajós, Xingú, and Araguaia.Astyanax multidensis distinguished from congeners by the unique combination of five to seven maxillary teeth, 31 to 34 pored lateral-line scales, 20 to 23 branched anal-fin rays, and a dark triangular blotch restricted to the middle caudal-fin rays. Astyanax multidens was collected syntopically with Jupiaba paranatinga in the rio Tapajós basin and with Jupiabacf. essequibensis in the rio Xingu ba
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18

Liu, Hongyi, Chenghe Sun, Ying Zhu, Yudong Li, Yisun Wei, and Honghua Ruan. "Mitochondrial genomes of four American characins and phylogenetic relationships within the family Characidae (Teleostei: Characiformes)." Gene 762 (December 2020): 145041. http://dx.doi.org/10.1016/j.gene.2020.145041.

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19

Haluch, Carolina Ferreira, and Vinícius Abilhoa. "Astyanax totae, a new characid species (Teleostei: Characidae) from the upper rio Iguaçu basin, southeastern Brazil." Neotropical Ichthyology 3, no. 3 (2005): 383–88. http://dx.doi.org/10.1590/s1679-62252005000300005.

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A new species of characid fish, Astyanax totae, is described from a small tributary in the upper drainage of the rio Iguaçu, Paraná basin, Brazil. The new species is distinct from most species of Astyanax by the vertically elongated humeral spot, slightly expanded above the lateral line to posterodorsal margin of opercle, followed by a midlateral dark stripe expanded from the humeral region to the median caudal-fin rays, maxilla with 2 to 5 teeth (usually 3) and 15 to 18 branched anal-fin rays.
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20

Zanata, Angela M., and Jane P. Serra. "Hasemania piatan, a new characid species (Characiformes: Characidae) from headwaters of Rio de Contas, Bahia, Brazil." Neotropical Ichthyology 8, no. 1 (2010): 21–26. http://dx.doi.org/10.1590/s1679-62252010000100003.

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Hasemania piatan is described from the upper rio de Contas drainage, Bahia, northeastern Brazil. It can be easily distinguished from its congeners by having 18 principal caudal-fin rays. The new species differs further from congeners by a combination of seven branched dorsal-fin rays, six branched pelvic-fin rays, anal-fin base not covered by scales, presence of only five infraorbitals, and presence of a humeral blotch. It also can be distinguished by having 10-13 branched anal-fin rays, 27-32 scales on longitudinal series, 10-12 circumpeduncular scales, and one to three maxillary teeth.
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21

Netto-Ferreira, André Luiz, José Luís Olivan Birindelli, Leandro Melo de Sousa, Tatiane Casagrande Mariguela, and Claudio Oliveira. "A New Miniature Characid (Ostariophysi: Characiformes: Characidae), with Phylogenetic Position Inferred from Morphological and Molecular Data." PLoS ONE 8, no. 1 (2013): e52098. http://dx.doi.org/10.1371/journal.pone.0052098.

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22

Nirchio, Mauro, Claudio Oliveira, Irani Alves Ferreira, Angel Granado, and Ernesto Ron. "Extensive polymorphism and chromosomal characteristics of ribosomal DNA in the characid fish Triportheus venezuelensis (Characiformes, Characidae)." Genetics and Molecular Biology 30, no. 1 (2007): 25–30. http://dx.doi.org/10.1590/s1415-47572007000100007.

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23

Mirande, Juan Marcos. "Phylogeny of the family Characidae (Teleostei: Characiformes): from characters to taxonomy." Neotropical Ichthyology 8, no. 3 (2010): 385–568. http://dx.doi.org/10.1590/s1679-62252010000300001.

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The family Characidae is the most diverse among Neotropical fishes. Systematics of this family are mainly based on pre-cladistic papers, and only recently a phylogenetic hypothesis for Characidae was proposed by the author. That phylogeny was based on 360 morphological characters studied for 160 species, including representatives of families related to Characidae. This paper is based on that phylogenetic analysis, with the analyzed characters described herein and documented, accompanied by comparisons of their definition and coding in previous papers. Synapomorphies of each node of the propose
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24

Lucena, Carlos Alberto Santos de. "New characid fish, Hyphessobrycon scutulatus, from the rio Teles Pires drainage, upper rio Tapajós system (Ostariophysi: Characiformes: Characidae)." Neotropical Ichthyology 1, no. 2 (2003): 93–96. http://dx.doi.org/10.1590/s1679-62252003000200003.

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A new species of characid fish, Hyphessobrycon scutulatus, is described from the rio Teles Pires drainage, upper rio Tapajós system. The new species is distinct from all Hyphessobrycon species by the following characters: inner row premaxillary teeth 7 or 8, all tricuspid; maxilla with 5 to 9 tricuspid teeth; horizontal lateral body stripe or humeral mark absent; and a spot centered on the basal portion of the median caudal-fin rays sometimes extends to the distal portions of those rays.
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25

Scarabotti, Pablo A., M. Julieta Parma, Javier A. López, and Romina Ghirardi. "Dermal lip protuberances associated with aquatic surface respiration in juveniles of the piscivorous characid Salminus brasiliensis (Actinopterygii: Characidae)." Neotropical Ichthyology 7, no. 3 (2009): 459–64. http://dx.doi.org/10.1590/s1679-62252009000300013.

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Some South American freshwater fishes can improve their capability of aquatic surface respiration (ASR) by developing dermal lip protuberances in the lower jaw. This adaptation was thought to be limited to omnivorous or herbivorous fishes. The present work provides the first evidence that juveniles of a piscivorous characid, Salminus brasiliensis, develop dermal lip protuberances during periods of hypoxia in floodplain ponds of the Salado River, in Argentina. The protuberance of S. brasiliensis involves dermal portions of both jaws exhibiting lateral lobes on the sides of the mouth arranged in
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26

Mirande, J. M., G. Aguilera, and M. Azpelicueta. "A new genus and species of small characid (Ostariophysi, Characidae) from the upper río Bermejo basin, northwestern Argentina." Revue suisse de zoologie. 111 (2004): 715–28. http://dx.doi.org/10.5962/bhl.part.80265.

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27

MARINHO, MANOELA M. F., and WILLIAN M. OHARA. "Redescription of Astyanax guaporensis Eigenmann, 1911 (Characiformes: Characidae), a small characid from the rio Madeira basin." Zootaxa 3652, no. 4 (2013): 475. http://dx.doi.org/10.11646/zootaxa.3652.4.5.

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28

TAGLIACOLLO, VICTOR A., RICARDO BRITZKE, GABRIEL S. C. SILVA, and RICARDO C. BENINE. "Astyanax pirapuan: a new characid species from the upper Rio Paraguay system, Mato Grosso, Central Brazil (Characiformes, Characidae)." Zootaxa 2749, no. 1 (2011): 40. http://dx.doi.org/10.11646/zootaxa.2749.1.3.

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A new characid fish is described herein from tributaries of the Rio Aricá-Mirim, Rio Cuiabá basin, Chapada dos Guimarães, Mato Grosso State, Brazil. Astyanax pirapuan better conforms to the A. scabripinnis species complex and it can be distinguished from other species of this complex by a combination of characters, including 8–9 gill rakers on the upper limb of first branchial arch, 0–1 tooth on the maxillary, 17 to 21 branched anal-fin rays, 35–37 perforated lateral line scales and two humeral spots.
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29

BERTACO, VINICIUS A., FERNANDO C. JEREP, and FERNANDO R. CARVALHO. "A new characid fish, Moenkhausia aurantia (Ostariophysi: Characiformes: Characidae), from the upper rio Tocantins basin in Central Brazil." Zootaxa 2934, no. 1 (2011): 29. http://dx.doi.org/10.11646/zootaxa.2934.1.3.

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A new characid species, Moenkhausia aurantia, is described from the upper portions of rio Tocantins basin, in the Chapada dos Veadeiros, Goiás State, central Brazil. The new species differs from its congeners by the combination of 3 or 4 scale rows below and 5 or 6 scale rows above the lateral line, 21–25 branched anal-fin rays, 33–35 lateral line scales, 2–4 maxillary teeth, one diffuse humeral spot, and caudal spot continuous to the longitudinal line which extends posteriorly over the middle caudal-fin rays. A key to identify Moenkhausia species describe from the Tocantins-Araguaia basin is
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30

Catarino, Michel F., and Jansen Zuanon. "Feeding ecology of the leaf fish Monocirrhus polyacanthus (Perciformes: Polycentridae) in a terra firme stream in the Brazilian Amazon." Neotropical Ichthyology 8, no. 1 (2010): 183–86. http://dx.doi.org/10.1590/s1679-62252010000100022.

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Monocirrhus polyacanthus (Polycentridae) is a remarkable leaf-mimicking fish that inhabits streams, lake and river margins along the Amazon basin. Despite its obvious predatory habits and being frequently present in the international aquarium trade, little is known about its diet under natural conditions. We examined 35 specimens of leaf fish (28.5-82.0 mm SL), of which 19 had food the stomach. Thirty-three preys were found in the stomach contents, 19 of which were measured (2.0-33.0 mm total length). Up to five preys were found in the stomach contents of a single leaf fish specimen. The diet
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31

Garutti, Valdener, and Paulo Cesar Venere. "Astyanax xavante, a new species of characid from middle rio Araguaia in the Cerrado region, Central Brazil (Characiformes: Characidae)." Neotropical Ichthyology 7, no. 3 (2009): 377–83. http://dx.doi.org/10.1590/s1679-62252009000300004.

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Astyanax xavante is described from a creek of the middle rio Araguaia drainage located in the Cerrado region of the Brazilian Central Plateau. The new species is distinguished from congeners by the combination of pigmentation, morphometric, meristic, morphologic, and tooth features. Ecological notes for A. xavante are included.
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32

Santos, José Enemir dos, and Hugo Pereira Godinho. "Ontogenic events and swimming behavior of larvae of the characid fish Salminus brasiliensis (Cuvier) (Characiformes, Characidae) under laboratory conditions." Revista Brasileira de Zoologia 19, no. 1 (2002): 163–71. http://dx.doi.org/10.1590/s0101-81752002000100015.

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33

BERTACO, VINICIUS A. "Astyanax douradilho, a new characid fish from the rio Tramandaí system, southern Brazil (Characiformes: Characidae)." Zootaxa 3794, no. 3 (2014): 492. http://dx.doi.org/10.11646/zootaxa.3794.3.10.

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34

CARVALHO, FERNANDO ROGIRIO, FRANCISCO LANGEANI, CARLOS SUETOSHI MIYAZAWA, and WALDO PINHEIRO TROY. "Hyphessobrycon rutiliflavidus n. sp., a new characid fish from the upper rio Paraguai, State of Mato Grosso, Brazil (Characiformes: Characidae)." Zootaxa 1674, no. 1 (2008): 39. http://dx.doi.org/10.11646/zootaxa.1674.1.3.

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Hyphessobrycon rutiliflavidus, new species, is described from the upper rio Paraguai in Cuiab<, State of Mato Grosso, Brazil. The new species differs from all other congeners by the following combination of characters: black humeral spot, slightly diffuse at its tips, and caudal-peduncle blotch present; midlateral body stripe conspicuous in its posteriormost portion, extending to the tips of the middle caudal rays; anal fin with iii,15 to iv,19 rays (mode iv,17); upper jaw length, 42.3 to 49.5% of the head length; maxilla with 2–5 teeth (mode 3); all the fins of males reddish-orange and of
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35

Fais, Antonella, Giovanna Lucia Delogu, Sonia Floris, Benedetta Era, Rosaria Medda, and Francesca Pintus. "Euphorbia characias: Phytochemistry and Biological Activities." Plants 10, no. 7 (2021): 1468. http://dx.doi.org/10.3390/plants10071468.

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The aim of this review is to summarize all the compounds identified and characterized from Euphorbia characias, along with the biological activities reported for this plant. Euphorbia is one of the greatest genera in the spurge family of Euphorbiaceae and includes different kinds of plants characterized by the presence of milky latex. Among them, the species Euphorbia characias L. is an evergreen perennial shrub widely distributed in Mediterranean countries. E. characias latex and extracts from different parts of the plant have been extensively studied, leading to the identification of several
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36

Fais, Antonella, Benedetta Era, Amalia Di Petrillo, et al. "Selected Enzyme Inhibitory Effects of Euphorbia characias Extracts." BioMed Research International 2018 (May 29, 2018): 1–9. http://dx.doi.org/10.1155/2018/1219367.

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Extracts of aerial part of Euphorbia characias were examined to check potential inhibitors for three selected enzymes involved in several metabolic disorders. Water and ethanol extracts from leaves and flowers showed in vitro inhibitory activity toward α-amylase, α-glucosidase, and xanthine oxidase. IC50 values were calculated for all the extracts and the ethanolic extracts were found to exert the best effect. In particular, for the α-glucosidase activity, the extracts resulted to be 100-fold more active than the standard inhibitor. The inhibition mode was investigated by Lineweaver-Burk plot
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37

RIBEIRO, ALEXANDRE CUNHA, and NAÉRCIO AQUINO MENEZES. "Phylogenetic relationships of the species and biogeography of the characid genus Oligosarcus Günther, 1864 (Ostariophysi, Characiformes, Characidae) ." Zootaxa 3949, no. 1 (2015): 41. http://dx.doi.org/10.11646/zootaxa.3949.1.2.

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38

Claro-Jr, Luiz, Efrem Ferreira, Jansen Zuanon, and Carlos Araujo-Lima. "O efeito da floresta alagada na alimentação de três espécies de peixes onívoros em lagos de várzea da Amazônia Central, Brasil." Acta Amazonica 34, no. 1 (2004): 133–37. http://dx.doi.org/10.1590/s0044-59672004000100018.

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As enchentes anuais dos rios na Amazônia alagam extensas áreas de floresta conhecidas como várzeas ou igapós. Estas áreas têm papel importante na vida dos peixes da região, pois são fontes de alimento e de abrigo. Acreditamos que o desmatamento destas áreas ocasiona prejuízos à ictiofauna principalmente pela diminuição da quantidade e diversidade de alimento disponível. O estudo da relação entre a quantidade de floresta e a dieta de Parauchenipterus galeatus (Auchenipteridae, Siluriformes), Mylossoma duriventre (Characidae, Characiformes)e Triportheus elongatus (Characidae, Characiformes)permi
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39

STUFF, Travis, and Lucas Gonçalves SILVA. "PHYLOGENETIC RELATIONSHIPS ANAlYSIS AND CURRENT GEOGRAPHIC DISTRIBUTION OF SOUTH AMERICAN CHARACIDAE (TELEOSTEI: CHARACIFORMES)." Periódico Tchê Química 08, no. 16 (2011): 25–31. http://dx.doi.org/10.52571/ptq.v8.n16.2011.25_periodico16_pgs_25_31.pdf.

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The fish family Characidae is one of the most diverse in number of species and poorly described from a phylogenetic standpoint. By analyzing RAG2 gene sequences of all representatives genera occurring in South America and query the databases of brazilian ichthyological collections, it was obtained a phylogeny of the genus and the patterns analysis of the geogrphical distribution of species in the major South America basins. The new phylogeny resolves groups which showed some uncertain phylogenetic relationships and, additionally, for the first time an analysis of geographical distribution of S
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40

Guisande, Cástor, Patricia Pelayo-Villamil, Manuel Vera, et al. "Ecological Factors and Diversification among Neotropical Characiforms." International Journal of Ecology 2012 (2012): 1–20. http://dx.doi.org/10.1155/2012/610419.

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Morphological and DNA sequence data has been used to propose hypotheses of relationships within the Characiformes with minimal comparative discussion of causes underpinning the major intraordinal diversification patterns. We explore potential primary morphological factors controlling the early diversification process in some Neotropical characiforms as the first step to identifying factors contributing to the pronounced intraordinal morphological and species diversity. A phylogenetic reconstruction based on 16S rDNA (mitochondrial) and 18S rDNA (nuclear) genes provided the framework for the id
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41

Falsone, G., F. Cateni, F. Katusian, et al. "New Cerebrosides fromEuphorbia characias." Planta Medica 59, S 1 (1993): A617. http://dx.doi.org/10.1055/s-2006-959844.

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42

Alonso, Felipe, Juan Marcos Mirande, and Matías Pandolfi. "Gross anatomy and histology of the alimentary system of Characidae (Teleostei: Ostariophysi: Characiformes) and potential phylogenetic information." Neotropical Ichthyology 13, no. 2 (2015): 273–86. http://dx.doi.org/10.1590/1982-0224-20140137.

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A compared study of the morphology of the alimentary tract and liver of seven selected species corresponding to the main clades of the Characidae family is presented herein. Three new set of characters corresponding to 1) alimentary tract gross anatomy, 2) alimentary tract histology and 3) liver gross anatomy are evaluated as potential sources of data for future phylogenetic studies of the Characidae. Not considerable interspecific variation was observed at the histological level and therefore this source is not considered to be phylogenetically informative at the taxonomic level analyzed. In
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Casciotta, J. R., A. E. Almiron, and M. Azpelicueta. "Astyanax pampa (Characiformes, Characidae), a." Revue suisse de zoologie. 112 (2005): 401–8. http://dx.doi.org/10.5962/bhl.part.80305.

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44

Gonzalez, R. J., A. Cradeur, M. Guinnip, A. Mitchell, and V. Reduta. "South American characids share very similar ionoregulatory characteristics." Comparative Biochemistry and Physiology Part A: Molecular & Integrative Physiology 226 (December 2018): 17–21. http://dx.doi.org/10.1016/j.cbpa.2018.06.025.

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45

Felice, Vanessa, Maria Aparecida Visconti, and Eleonora Trajano. "Mechanisms of pigmentation loss in subterranean fishes." Neotropical Ichthyology 6, no. 4 (2008): 657–62. http://dx.doi.org/10.1590/s1679-62252008000400015.

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Troglobitic (exclusively subterranean) organisms usually present, among their apomorphies related to the subterranean life (troglomorphisms), the regression of eyes and melanic pigmentation. The degree of regression varies among species, from a slight reduction to the complete loss of eyes and dark pigmentation, without a taxonomic correlation. While mechanisms of eye reduction have been intensively investigated in some troglobites such as the Mexican blind tetra characins, genus Astyanax, and the European salamander, Proteus anguinus, few studies have focused on pigmentation. The Brazilian su
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Park, Jae-Min, Na-Ri Kim, Kyeong-Ho Han, Ji-Hyeong Han, Maeng-Hyun Son, and Jae-Kwon Cho. "Spawning Behavior, Egg Development, Larvae and Juvenile Morphology of Hyphessobrycon eques (Pisces: Characidae) Characidae Fishes." Development & Reproduciton 18, no. 4 (2014): 241–49. http://dx.doi.org/10.12717/dr.2014.18.4.241.

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47

Appendino, Giovanni, Emanuela Belloro, Gian Cesare Tron, Jasmin Jakupovic, and Mauro Ballero. "Polycyclic diterpenoids from Euphorbia characias." Fitoterapia 71, no. 2 (2000): 134–42. http://dx.doi.org/10.1016/s0367-326x(99)00134-3.

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48

Marinho, Manoela M. F., and Flávio C. T. Lima. "Astyanax ajuricaba: a new species from the Amazon basin in Brazil (Characiformes: Characidae)." Neotropical Ichthyology 7, no. 2 (2009): 169–74. http://dx.doi.org/10.1590/s1679-62252009000200006.

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A new Astyanax species is described from several localities in the rio Negro, rio Solimões and lower rio Tapajós basins, Amazon basin, Brazil. The new species is distinguished from all remaining characids by its unique color pattern consisting of the combination of presence of a conspicuous, narrow dark midlateral stripe, a well-developed vertically-elongated dark humeral spot, and upper caudal-fin lobe and middle caudal-fin rays dark, with a rounded clear ocellated spot present at anterior third of caudal-fin lobe.
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49

Carvalho, Fernando R., and Francisco Langeani. "Hyphessobrycon uaiso: new characid fish from the rio Grande, upper rio Paraná basin, Minas Gerais State (Ostariophysi: Characidae), with a brief comment about some types of Hyphessobrycon." Neotropical Ichthyology 11, no. 3 (2013): 525–36. http://dx.doi.org/10.1590/s1679-62252013000300006.

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Hyphessobrycon uaiso is described from the upper rio Paraná basin, rio Grande drainage, Minas Gerais State. The new species differs from its congeners by the short anal fin with 12-17 branched rays, and dorsal fin with ii,7-8 rays. Besides, it can be distinguished by the presence of i,5-6 pelvic fin rays, and by the coloration of the eyes (in life), slightly blue on the lower half and blackish on the upper half. New records of Hyphessobryconare recognized for the upper rio Paraná basin: H. eilyos Lima & Moreira, H. guarani Mahnert & Géry, and H. herbertaxelrodi Géry. The knowledge stat
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Menezes, N. A., S. H. Weitzman, and T. F. Teixeira. "Redescription of Hysteronotus megalostomus (Characiformes: Characidae: Stevardiinae), a poorly known characid from tributaries of the Rio São Fancisco, Brazil with comments on the conservation of the species." Journal of Fish Biology 89, no. 1 (2016): 495–509. http://dx.doi.org/10.1111/jfb.13000.

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