scholarly journals Astyanaxelachylepis, a new characid fish from the rio Tocantins drainage, Brazil (Teleostei: Characidae)

2005 ◽  
Vol 3 (3) ◽  
pp. 389-394 ◽  
Author(s):  
Vinicius A. Bertaco ◽  
Paulo H. F. Lucinda
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Caudal Peduncle ◽  
Pectoral Fins ◽  
Maxillary Tooth ◽  
Fin Rays

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.

scholarly journals Hyphessobrycon natagaima (Characiformes: Characidae) a new species from Colombia, with a key to the Magdalena Basin Hyphessobrycon species

Caldasia ◽  
2015 ◽  
Vol 37 (1) ◽  
pp. 221 ◽  
Author(s):  
Carlos A. García-Alzate ◽  
Donald C. Taphorn ◽  
Cesar Roman-Valencia ◽  
Francisco A. Villa-Navarro
Keyword(s):  
New Species ◽  
River Basin ◽  
Lateral Line ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Pectoral Fins ◽  
Fin Rays ◽  
Magdalena River ◽  
A New Species ◽  
Pelvic Fin

<p>A new species, Hyphessobrycon natagaima, is described from the upper Magdalena River Basin in Colombia. It differs from all other species of Hyphessobrycon with a dark lateral stripe inhabiting the Magdalena River Basin: H. poecilioides, H. proteus and H. ocasoensis, by having eight to twelve pored lateral-line scales (vs. 14-26); four scales between the lateral line and the pelvic-fin insertions (vs. five or six); one tooth on the maxilla (vs. zero in H. poecilioides, and two to five in H. proteus; except H. ocasoensis, with one), a dark, interrupted, lateral stripe that is not in contact with the caudal peduncle spot (vs. absence of caudal spot in H. poecilioides, lateral stripe continued that is in contact with the caudal peduncle spot in H. ocasoensis). It has a rhomboid shaped caudal-peduncle spot that continues on to middle caudal-fin rays (vs. absence of caudal peduncle spot in H. poecilioides and caudal peduncle spot round and not continued on to middle caudal-fin rays in H. ocasoensis); and presence of hooks on all fins in mature males (vs. males with hooks on anal, pelvic and pectoral fins). Hyphessobrycon natagaima differs from H. ocasoensis, in addition to the above characters, by having four scale rows between the lateral line and the anal-fin origin (vs. six); three or four scale rows between the lateral line and the pelvic-fin insertions (vs. six); ten or eleven predorsal scales (vs. nine); i,9,i dorsal-fin rays (vs. ii,8,i); 18-20 branched anal-fin rays (vs. 21-22) and eleven branched pectoral-fin rays (vs. twelve). A key for the identification of Hyphessobrycon species present in the Magdalena River Basin is provided.</p>

scholarly journals A new species of Hyphessobrycon (Teleostei: Characidae) from the upper rio Tocantins drainage, with bony hooks on fins

2005 ◽  
Vol 3 (1) ◽  
pp. 83-88 ◽  
Author(s):  
Vinicius A. Bertaco ◽  
Luiz R. Malabarba
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Pectoral Fins ◽  
Fin Rays ◽  
A New Species

A new species of characid, Hyphessobrycon hamatus, is described from the upper rio Tocantins, Goiás, Brazil. The new species is distinguished from all other Hyphessobrycon species by the presence of bony hooks on dorsal, anal, pelvic, and pectoral fins of males, the two black humeral spots, the 4 or 5 teeth in the inner series of the premaxilla, a maxilla with 2-3 teeth, the iii-v, 16-18 anal-fin rays, and a lateral line with 10-32 perforated scales and 33-35 scales in a longitudinal series.

Nandus prolixus, a new species of leaf fish from northeastern Borneo (Teleostei: Perciformes: Nandidae)

Zootaxa ◽  
2006 ◽  
Vol 1328 (1) ◽  
pp. 51 ◽  
Author(s):  
PROSANTA CHAKRABARTY ◽  
RONALD G. OLDFIELD ◽  
HEOK H. NG
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Slender Body ◽  
Dark Spot ◽  
Caudal Peduncle ◽  
Body Depth ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species ◽  
Pectoral Fin Rays

Nandus prolixus sp. nov. is described from the Sepilok River drainage in Sabah, northeastern Borneo. This species is distinguished from its only Sundaic southeastern Asian congener, N. nebulosus, in having a longer, more produced snout (25.7–30.6% HL vs. 18.5–26.1), more lateralline scales (33–37 vs. 24–34), more scales below the lateral line (12 vs. 10–11), fewer spines in the dorsal fin (XIV vs. XV–XVI), and fewer pectoral-fin rays (15–16 vs. 17–19). It differs from N. nandus (from India) in having fewer lateral-line scales (33–37 vs. 42–55), fewer scales above the lateral line (4–5 vs. 6–7), fewer scales below the lateral line (12 vs. 14–18), more dorsal spines (XIV vs. XII–XIII), and the absence (vs. presence) of a distinct dark spot at the base of the caudal peduncle. It differs from N. oxyrhynchus (from mainland southeastern Asia) in having a more slender body (body depth 37.6–40.5% SL vs. 41.3–44.1) and a less steeply sloping predorsal profile.

A new species of Astyanax (Characiformes: Characidae) from the endorheic RRo SalR basin, Tucumán, northwestern Argentina

Zootaxa ◽  
2007 ◽  
Vol 1646 (1) ◽  
pp. 31-39 ◽  
Author(s):  
JUAN MARCOS MIRANDE ◽  
GAST[N AGUILERA ◽  
MARQA DE LAS MERCEDES AZPELICUETA
Keyword(s):  
New Species ◽  
Short Distance ◽  
Gill Rakers ◽  
Caudal Peduncle ◽  
Northwestern Argentina ◽  
Tooth Position ◽  
Maxillary Tooth ◽  
Fin Rays ◽  
A New Species ◽  
Pelvic Fin

Astyanax puka, new species from the endorheic RRo SalR basin, is diagnosed by the following combination of characters: shallow body (33.5–39.8 % SL), 36–38 perforated scales in lateral line, 6/5 transverse scales, 9–10 gradually decreasing dentary teeth, distally expanded premaxillary teeth, one distally expanded maxillary tooth with 7–9 cusps, short upperjaw length (34.5–37.8 % HL), short maxilla (20.7–23.3 % HL) expanded abruptly under maxillary tooth position, short postorbital distance (36.6–46.9 % HL), short distance between pelvic and anal-fin origins (17.1–20.6 % SL), 22–27 branched anal-fin rays, long caudal peduncle (13.3–16.5 % SL), bony hooks restricted to pelvic-fin rays 2 to 6 and anterior 6–13 branched anal-fin rays on mature males, and the presence of broad denticles on anterior, lateral, and posterior edges of first ceratobranchial gill rakers.

scholarly journals New species of Leporinus (Characiformes: Anostomidae) from the highlands of the Guiana Shield in Venezuela

2019 ◽  
Vol 17 (2) ◽  
Author(s):  
José L. O. Birindelli ◽  
Heraldo A. Britski ◽  
Francisco Provenzano
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Morphological Data ◽  
Guiana Shield ◽  
Caudal Peduncle ◽  
Digital Photograph ◽  
The Family ◽  
Fin Rays ◽  
A New Species

ABSTRACT A new species of Leporinus is described using morphological data and compared to all other species of the family. Specimens were illustrated using digital photograph, measured using digital calipers, and had teeth, scales, and fin rays counted under a stereomicroscope. The new species is distinguished from all other Anostomidae, except Anostomus anostomus, A. brevior, A. ternetzi, Hypomasticus despaxi, Leporinus arcus, and L. striatus, by having four dark longitudinal stripes on body. The new species is distinguished from aforementioned species by having terminal mouth with four teeth on the premaxilla, 12 series of scales around caudal peduncle, and 34 to 36 scales in the lateral line. The new species is remarkably similar to Leporinus arcus, which occurs on the opposite side of Guyana Shield highlands. The new species and L. arcus are possibly closely related to Leporinus gomesi, L. granti, L. lebaili, L. melanostictus, L. nijsseni, and L. santosi.

Two new species of Jupiaba (Characiformes: Characidae) from the rio Tapajós and rio Madeira drainages, Brazil, with an identification key to species of the genus

Zootaxa ◽  
2009 ◽  
Vol 2262 (1) ◽  
pp. 53-68 ◽  
Author(s):  
ANDRÉ L. NETTO-FERREIRA ◽  
ANGELA M. ZANATA ◽  
JOSÉ L.O. BIRINDELLI ◽  
LEANDRO M. SOUSA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Color Pattern ◽  
Dark Spot ◽  
Caudal Peduncle ◽  
Body Depth ◽  
Two New Species ◽  
Fin Rays ◽  
Eye Diameter ◽  
Rio Madeira

Two new species of Jupiaba Zanata are described from Brazil. Jupiaba iasy, new species, is described from rio Teles Pires and rio Jamanxim, tributaries of rio Tapajós, and from rio Aripuanã, in the rio Madeira drainage. It is distinguished from its congeners by its color pattern consisting of a single posteriorly displaced dark crescent-shaped humeral blotch, situated over the first 5 to 7 lateral line scales, and an inconspicuous dark spot at the end of caudal peduncle. It also differs from all remaining Jupiaba for the following combination of characters: 34-36 lateral line scales, 19–21 branched anal-fin rays, 8–10 predorsal scales arranged in a regular row, 6 horizontal series of scales above and 4 series below lateral line, body depth 32.3–36.1% of SL, and absence of filamentous rays in the first dorsal and anal-fin rays. Jupiaba paranatinga, new species, is described from rio Teles Pires, tributary of rio Tapajós. It is distinguished by having 34–35 lateral line scales, two vertically elongated humeral blotches, a conspicuous caudal spot at the end of the caudal peduncle, extending over 8–10 median caudal-fin rays, eye diameter 43.7–46.9% of HL, and relatively low body depth (31.3–35.5% of SL). Additionally, comments on the putative relationships of the new species with their congeners and an updated key to the species of the genus are provided.

scholarly journals A review of the species in the Apogon fasciatus group with a description of a new species of cardinalfish from the Indo-West Pacific (Perciformes: Apogonidae)

Zootaxa ◽  
2005 ◽  
Vol 924 (1) ◽  
pp. 1 ◽  
Author(s):  
THOMAS H. FRASER
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Pectoral Fin ◽  
Gill Rakers ◽  
Caudal Peduncle ◽  
Fin Rays ◽  
Vertical Bars ◽  
Ventral Edge ◽  
A New Species ◽  
Pectoral Fin Rays

Nine nominal, Indo-West Pacfic species are treated: Apogon fasciatus (White, 1790), Apogon quadrifasciatus Cuvier in Cuvier & Valenciennes, 1828, Apogon monogramma Günther, 1880, Apogon septemstriatus Günther, 1880, Apogon evanidus Fowler 1904, Apogon elizabethae (Jordan & Seale, 1905), Apogon quinquestriatus Regan, 1908, Apogon kiensis Jordan & Snyder, 1901 and Apogon bryx Fraser, 1998. Four species treated as valid have VII first-dorsal spines: Apogon fasciatus with two brownish stripes on each side of the head and body to caudal peduncle and a faint, variable stripe along a portion of the lateral-line, 16 (15) pectoral-fin rays, and 14–17 (12, 13 or 18) gill rakers, Apogon quinquestriatus with four brownish stripes on each side of head and body, two reaching the caudal peduncle, 15 pectoral-fin rays, and 15 gill rakers, Apogon septemstriatus with three brownish stripes on each side of head and body, three reaching the caudal peduncle, 14 (13) pectoral-fin rays, and 14–16 gill rakers, Apogon pleuron, new species, with two brownish stripes on each side of head and body reaching the caudal peduncle, ventral edge of midlateral stripe with vertical bars, 15 (14 or16) pectoral-fin rays, and 17–20 (15, 16 or 21) gill rakers. Two species treated as valid have VI first-dorsal spines: Apogon bryx with three brownish stripes on each side of head and body, two reaching the caudal peduncle, 14–15 pectoral-fin rays, and 22–23 (21 or 24) gill rakers, Apogon kiensis, with two brownish stripes on each side of head and body reaching the caudal peduncle, 14–15 pectoral-fin rays, and 16–18 (15 or 19-20) gill rakers. The long recognized name, Apogon quadrifasciatus, is synonymous with Apogon fasciatus.

Moenkhausia pankilopteryx, new species from rio Tocantins drainage, Brazil (Ostariophysi: Characiformes, Characidae)

Zootaxa ◽  
2006 ◽  
Vol 1120 (1) ◽  
pp. 57 ◽  
Author(s):  
VINICIUS A. BERTACO ◽  
PAULO H.F. LUCINDA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Caudal Peduncle ◽  
Fin Rays ◽  
Deep Body

A new characid species, Moenkhausia pankilopteryx, is described from the rio Tocantins drainage. The new species is distinguished from its congeners by the combination of 37–41 pored scales in the lateral line; a deep body, 43.3–51.0 % SL; the presence of bony hooks on all fins of mature males; a caudal-peduncle spot; two humeral spots, the first of which is black, larger and vertically elongate, with the second dark and very diffuse (not visible in some specimens); two or three tricuspid or pentacuspid maxillary teeth; and anal-fin rays: ii–iv, 24–27.

scholarly journals New species of Moenkhausia Eigenmann (Ostariophysi: Characidae) from the upper rio Tocantins basin in Central Brazil

2011 ◽  
Vol 9 (1) ◽  
pp. 57-63 ◽  
Author(s):  
Vinicius A Bertaco ◽  
Fernando C Jerep ◽  
Fernando R Carvalho
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Dark Spot ◽  
Caudal Peduncle ◽  
Central Brazil ◽  
Dorsal Fin ◽  
Fin Rays

Moenkhausia dasalmas is described from the upper rio Tocantins basin, in the Chapada dos Veadeiros region, Goiás State, Central Brazil. The new species differs from all congeners by the presence of iii,9 rays in the dorsal fin. It can also be distinguished from its congeners by the presence of two humeral spots (first one vertically elongate and second one faint), by the number of branched anal-fin rays (17-19), lateral line scales (36-37), maxillary teeth (4-5), and a vertical dark spot in the caudal peduncle end.

scholarly journals A new species of Serrapinnus Malabarba, 1998 (Characidae: Cheirodontinae) from Rio Grande do Norte State, northeastern Brazil

2014 ◽  
Vol 12 (2) ◽  
pp. 301-308 ◽  
Author(s):  
Fernando C. Jerep ◽  
Luiz R. Malabarba
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Rio Grande ◽  
The Other ◽  
Northeastern Brazil ◽  
Sexually Dimorphic ◽  
Ventral Margin ◽  
Caudal Peduncle ◽  
Fin Rays ◽  
A New Species

Serrapinnus potiguar, new species, is described from the rio Ceará-Mirim, a coastal drainage in the Rio Grande do Norte State, northeastern Brazil. The new species is distinguished from the other species of the genus by the shape and arrangement of the ventral procurrent caudal-fin rays of the sexually dimorphic males; where the hypertrophied elements present the shape of a series of scimitars arranged radially, forming a semi-circle on the ventral margin of the caudal peduncle. Furthermore, the new species is diagnosed from S. heterodonand S. piaba, sympatric congeners from the northeastern Brazilian drainages, respectively by the presence of incomplete lateral line and teeth bearing at most five cusps.

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