Tachysurus spilotus, a new species of catfish from central Vietnam (Teleostei: Bagridae)

Zootaxa ◽  
2009 ◽  
Vol 2283 (1) ◽  
pp. 16-28
Author(s):  
HEOK HEE NG
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Junior Synonym ◽  
Caudal Fin ◽  
Central Vietnam ◽  
A New Species ◽  
Colored Body ◽  
Dark Body

Tachysurus spilotus, a new species of catfish from central Vietnam, is described. It can be distinguished from congeners except T. argentivittatus, T. longispinalis, and T. virgatus in having a color pattern consisting of black longitudinal stripes on a pale body (vs. with a uniform-colored body with pale patches or transverse bands on a dark body, or with dark rectangular patches on a pale body). It differs from both T. argentivittatus and T. virgatus in snout shape and having gently convex (vs. straight) posterior edges of the caudal-fin lobes; and from T. longispinalis in having a shorter dorsalfin spine (ca. 27% SL vs. 15.1–19.0) and maxillary barbels (shorter, vs. longer than head). Tachysurus mica is shown here to be conspecific with—and a junior synonym of—T. argentivittatus.

scholarly journals Opistognathus albicaudatus, a new species of jawfish (Teleostei: Opistognathidae) from the Andaman Islands

Zootaxa ◽  
2011 ◽  
Vol 3085 (1) ◽  
pp. 34 ◽  
Author(s):  
WILLIAM F. SMITH-VANIZ
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Range Extension ◽  
Colour Pattern ◽  
Andaman Islands ◽  
Morphological Similarity ◽  
Caudal Fin ◽  
Upper Jaw ◽  
Gill Raker ◽  
A New Species

A new species of jawfish, Opistognathus albicaudatus, is described based on two specimens, 91.4–94.8 mm SL, from the Andaman Islands. The combination of an elongate upper jaw produced as thin flexible lamina, and a unique colour pattern consisting of an abruptly white caudal fin and gill arches with a series of 8–10 small dark spots, each near the base of a gill raker, distinguishes the new species from other congeners. Based on morphological similarity and general color pattern, the new species seems to be most closely related to Opistognathus variabilis.These two species appear to have allopatric distributions. A range extension for O. cyanospilotus is also reported.

scholarly journals A new species of Farlowella (Siluriformes: Loricariidae) of the F. nattereri species-group from the rio Xingu basin, Mato Grosso, Brazil, with comments on Farlowella jauruensis , a poorly-known species from the upper rio Paraguai basin

2016 ◽  
Vol 14 (3) ◽  
Author(s):  
Gustavo A. Ballen ◽  
Murilo N. L. Pastana ◽  
Luiz A. W. Peixoto
Keyword(s):  
New Species ◽  
Geographic Distribution ◽  
Color Pattern ◽  
Species Group ◽  
Caudal Fin ◽  
Mato Grosso ◽  
Fin Rays ◽  
Plate Morphology ◽  
A New Species

ABSTRACT A new species of Farlowella is described from eighteen specimens collected in the upper rio Xingu basin, Mato Grosso State, Brazil. The new species is a member of the Farlowella nattereri species-group and can be distinguished from other members of the group, with exception of Farlowella jauruensis , by exhibiting a proportionally shorter snout. The new species is distinguished from F. jauruensis by differences on the cleithrum and plate morphology, by counts of pelvic and caudal-fin rays, and by the color pattern of the snout. The discovery of new lots of F. jauruensis , a species so far known only from the holotype, is also herein reported. This discovery represents a considerable expansion of the geographic distribution and of the number of known specimens of F . jauruensis .

scholarly journals A new species of Microglanis(Siluriformes: Pseudopimelodidae) from the upper rio Tocantins basin, Goiás State, Central Brazil

2014 ◽  
Vol 12 (1) ◽  
pp. 81-87 ◽  
Author(s):  
Oscar Akio Shibatta
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Posterior Margin ◽  
Color Pattern ◽  
Occipital Region ◽  
Caudal Fin ◽  
Central Brazil ◽  
Unique Color ◽  
A New Species ◽  
Pelvic Fin

A new species of Microglanis is described from the upper rio Tocantins basin, Barro Alto, Goiás State, Brazil. This species is distinguished from the others by presenting a unique color pattern, consisting of round spots in the flank between the larger dark brown blotches. Moreover, it can be distinguished by the combination of the following features: caudal fin emarginate, the upper lobe slightly larger than the lower, lateral line relatively long, reaching vertical through posterior margin of the pelvic fin, and light stripe on supra-occipital region absent or very narrow and with irregular shape.

Description of a new species of sand-dwelling catfish of the genus Stenolicmus (Siluriformes; Trichomycteridae)

Zootaxa ◽  
2011 ◽  
Vol 2752 (1) ◽  
pp. 62 ◽  
Author(s):  
WOLMAR BENJAMIN WOSIACKI ◽  
DANIEL PIRES COUTINHO ◽  
LUCIANO FOGAÇA DE ASSIS MONTAG
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
Color Pattern ◽  
Distal Margin ◽  
Dorsal Region ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Left Tributary ◽  
Fin Length ◽  
A New Species

Stenolicmus ix, new species, is described from Igarapé Curuá, left tributary of the Rio Amazonas, Pará, Brazil. It can be distinguished from S. sarmientoi by the length of the nasal barbels that reach the base of the first opercular odontodes; length of the maxillary barbels that reach the posterior margin of the opercular odontode plate; seven well-developed opercular odontodes; seven well-developed interopercular odontodes; color pattern of the dorsal region of trunk composed of agglomerated chromatophores forming circular patches twice the diameter of the eye; proportionally large eyes, 11.8% HL; caudal peduncle tall, 11.6% SL, without dark bar at base of the caudal fin; length of the head proportionately larger, 17.9% SL; unbranched rays of caudal fin reaching distal margin of fin. Comparisons with other Sarcoglanidinae and Trichomycteridae are presented. Some comments on the systematics and phylogenetic relationships of the group are made.

scholarly journals A new species of Microglanis (Siluriformes: Pseudopimelodidae) from the rio Uruguay drainage, Brazil

2005 ◽  
Vol 3 (1) ◽  
pp. 61-67 ◽  
Author(s):  
Vinicius A. Bertaco ◽  
Alexandre R. Cardoso
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Color Pattern ◽  
Head Length ◽  
Rio Grande Do Sul ◽  
Body Width ◽  
Caudal Fin ◽  
White Band ◽  
Northern Rio Grande ◽  
A New Species

A new pseudopimelodid catfish, Microglanis malabarbai, is described from the rio Ijuí drainage, tributary of the middle rio Uruguay, Rio Grande do Sul, Brazil. The new species is distinguished from all other Microglanis species by the caudal fin color pattern, almost completely black, with a narrow vertical white band across central portions of the caudal-fin rays. Furthermore, it is distinguished from M. cottoides and M. eurystoma, both from rio Uruguay drainage, by head length, maxillary barbel length, internareal distance, and number of lateral-line pores, and from M. cibelae from the coastal drainages of northern Rio Grande do Sul and southern Santa Catarina states, by head length, maxillary barbel length, and body width. A key is presented for the species of Microglanis occurring in southern Brazil.

A new species of Hemigrammus Gill 1858 (Characiformes: Characidae) from the upper Rio Negro, Amazon basin, Brazil

Zootaxa ◽  
2019 ◽  
Vol 4555 (3) ◽  
pp. 407 ◽  
Author(s):  
LAIS REIA ◽  
RICARDO C. BENINE
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Color Pattern ◽  
Caudal Fin ◽  
Dark Stripe ◽  
Unique Color ◽  
Rio Negro ◽  
Vertical Scale ◽  
Fin Rays ◽  
A New Species

A new species of Hemigrammus is described from the upper Rio Negro, Amazon basin, Brazil. The new species is distinguished from all congeners by its unique color pattern consisting of a single humeral blotch clearly spaced from a conspicuous midlateral dark stripe, which extends from fifth or sixth anteriormost vertical scale row to the basis of the middle caudal-fin rays. Comments on its putative relationships are provided. 

scholarly journals A small new species of Crenicichla Heckel, 1840 from middle rio Xingu, Brazil (Teleostei: Cichlidae)

2015 ◽  
Vol 13 (3) ◽  
pp. 471-478 ◽  
Author(s):  
Priscila Madoka M. Ito ◽  
Lúcia H. Rapp Py-Daniel
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Color Pattern ◽  
Species Group ◽  
Small Species ◽  
Caudal Fin ◽  
A New Species

A new species of Crenicichla is described from the middle rio Xingu and tributaries, upstream from Volta Grande do Xingu. The largest specimen measured 47.8 mm SL. The new speciescan be distinguished from all other Crenicichla species by the combination of the following character states: presence of serrae on supracleithrum (diagnostic of Crenicichla wallacii species group), large caudal blotch centrally located on caudal lateral line (shared with C. urosema and C. virgatula ), vertical dark stripes on the caudal fin and up to three series of teeth on premaxilla and maxilla (vs. more than four series of teeth). The new species described hereinis the eleventh species of Crenicichla listed from the rio Xingu basin. Similarities of color pattern among small species of Crenicichla is discussed.

A new annual fish of the genus Simpsonichthys (Cyprinodontiformes: Cynolebiidae) from the upper Rio Jequitinhonha basin, Brazil

Zootaxa ◽  
2017 ◽  
Vol 4263 (1) ◽  
pp. 165 ◽  
Author(s):  
DALTON TAVARES BRESSANE NIELSEN ◽  
TIAGO CASARIM PESSALI ◽  
GUILHERME MOREIRA DUTRA
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Color Pattern ◽  
Pectoral Fin ◽  
Annual Fish ◽  
Caudal Fin ◽  
Eastern Brazil ◽  
Eye Diameter ◽  
Fin Length ◽  
A New Species

A new species of Simpsonichthys is described from the upper rio Jequitinhonha basin, Minas Gerais, eastern Brazil. It is diagnosed from all congeners by presenting an A-patterned frontal squamation. Additionally, males of the new species differs from all congeners by the color pattern of body, the color of iris, the absence of contact organs in the pectoral fin, presence of scales on anal-fin base, pectoral-fin length, caudal fin length, and eye diameter. Females of the new species can be diagnosed from remaining congeners by the pectoral-fin length. The conservation status of the new species is evaluated. Comments on the relationships of the new species within the genus Simpsonichthys are presented.

scholarly journals Description of a new species of Ituglanis (Siluriformes: Trichomycteridae) from Serra dos Carajás, rio Tocantins basin

2012 ◽  
Vol 10 (3) ◽  
pp. 547-554 ◽  
Author(s):  
Wolmar B. Wosiacki ◽  
Guilherme M. Dutra ◽  
Marina B Mendonça
Keyword(s):  
New Species ◽  
Color Pattern ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Trunk Line ◽  
Fin Rays ◽  
The Relationship ◽  
A New Species

A new species of Ituglanis is described from the rio Tocantins basin, State of Pará, Brazil. Ituglanis ina, new species, is distinguished from its congeners by the presence of a dark vertical bar over the base of the caudal-fin rays (vs. no bars over caudal-fin base); and by the presence of a middle trunk line of tiny neuromasts extending along the flank until the vertical through the dorsal fin, or near the caudal-fin base (vs. no middle trunk line of tiny neuromasts). Ituglanis ina can be further distinguished by a combination of characters related to color pattern and morphology. Comments on the relationship between Ituglanis species are presented.

scholarly journals Astyanax ajuricaba: a new species from the Amazon basin in Brazil (Characiformes: Characidae)

2009 ◽  
Vol 7 (2) ◽  
pp. 169-174 ◽  
Author(s):  
Manoela M. F. Marinho ◽  
Flávio C. T. Lima
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Color Pattern ◽  
Caudal Fin ◽  
Unique Color ◽  
Rio Negro ◽  
Fin Rays ◽  
A New Species

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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