Psilotris vantasselli, a new species of goby from the tropical western Atlantic (Teleostei: Gobiidae: Gobiosomatini: Nes subgroup)

Zootaxa ◽  
2019 ◽  
Vol 4624 (2) ◽  
pp. 191-204
Author(s):  
LUKE TORNABENE ◽  
CAROLE C. BALDWIN
Keyword(s):  
New Species ◽  
Similar Species ◽  
Western Atlantic ◽  
Bright Yellow ◽  
Fin Rays ◽  
Molecular Phylogenetic ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Pelvic Fin ◽  
Orange Spot

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 of scales on the head and body and the presence of modified ctenoid scales on the base of the caudal fin, branched pelvic-fin rays, and 15–16 pectoral-fin rays further differentiates the new species from other species of Psilotris and Varicus. 

Navigobius asayake, a new species of ptereleotrine goby (Gobioidei: Microdesmidae) from Kagoshima, southern Japan

Zootaxa ◽  
2018 ◽  
Vol 4526 (3) ◽  
pp. 373
Author(s):  
MAKOTO OKAMOTO ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Dorsal Fin ◽  
Southern Japan ◽  
Fin Rays ◽  
Eye Diameter ◽  
Yellow Stripe ◽  
Fin Length ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

A new species of ptereleotrine dartfish, Navigobius asayake, is described based on four specimens (45.0–52.1 mm in standard length: SL) collected from off the Satsuma Peninsula and Tanegashima island, Kagoshima, southern Japan. It is distinguished from other congeners by the following combination of characters: second dorsal-fin rays I, 18–19; anal-fin rays I, 19; pectoral-fin rays 21–22; gill rakers 5–6 + 13–15; head length 25.1–26.4% SL; eye diameter 8.6–10.0% SL; pelvic-fin length 15.2–16.1% SL; and a well-developed yellow stripe extending from behind upper part of eye to beneath first dorsal fin. 

scholarly journals A new species of Tyttocharax (Characiformes: Characidae: Stevardiinae) from the Güejar river, Orinoco river Basin, Colombia

2012 ◽  
Vol 10 (3) ◽  
pp. 519-525 ◽  
Author(s):  
César Román-Valencia ◽  
Carlos A. García-Alzate ◽  
Raquel I Ruiz-C ◽  
C Donald ◽  
B Taphorn
Keyword(s):  
New Species ◽  
Lateral Line ◽  
River System ◽  
First Record ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Adipose Fin ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

A new Tyttocharax species from the Güejar River system, near the Macarena Mountains in Colombia is described. This is the first record for the genus from the Orinoco basin. The combination of the following characters distinguish Tyttocharax metae from its congeners: presence of bony hooks on the pectoral and caudal-fin rays; bony hooks on the anal-fin rays larger than those on the pelvic-fin rays; pectoral-fin rays i,5-6,i; presence of three unbranched dorsal-fin rays; absence of an adipose fin; four scales rows between the anal-fin origin and the lateral line; and four scale rows between the pelvic-fin and the lateral line. Ecological characteristics of the habitat of the new species are also presented.

scholarly journals Pseudochromis stellatus, a new species of dottyback from Indonesia (Teleostei: Pseudochromidae)

Zootaxa ◽  
2017 ◽  
Vol 4338 (2) ◽  
pp. 333
Author(s):  
ANTHONY C. GILL ◽  
GERALD R. ALLEN ◽  
MARK V. ERDMANN
Keyword(s):  
New Species ◽  
Lateral Line ◽  
The Body ◽  
Colour Pattern ◽  
Dorsal Fin ◽  
West Papua ◽  
Fin Rays ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

The Pseudochromis reticulatus complex is diagnosed to include species of Pseudochromis with the combination of a pointed caudal fin (rounded with middle rays produced), a reticulated colour pattern on the upper part of the body, dorsal-fin rays modally III,26, anal-fin rays modally III,15, and pectoral-fin rays modally 18. Members of the complex include P. reticulatus Gill & Woodland, P. pictus Gill & Randall, P. tonozukai Gill & Allen, P. jace Allen, Gill & Erdmann and P. stellatus new species. The last-named is herein described from six specimens from Batanta and Batu Hitam in the Raja Ampat Islands, West Papua, Indonesia. It is distinguished from other members of the complex in live coloration, and in having higher mean numbers of scales in lateral series and of anterior lateral-line scales (36–38 and 29–32, respectively), and a deeper body as measured from the dorsal-fin origin to pelvic-fin origin (31.8–33.5 % SL). 

New species of Trichomycterus (Siluriformes: Trichomycteridae) lacking pelvic fins from Paranapanema basin, southeastern Brazil

Zootaxa ◽  
2017 ◽  
Vol 4319 (3) ◽  
pp. 550 ◽  
Author(s):  
LUZ E. OCHOA ◽  
GABRIEL S. C. SILVA ◽  
GUILHERME J. COSTA E SILVA ◽  
CLAUDIO OLIVEIRA ◽  
ALESSIO DATOVO
Keyword(s):  
New Species ◽  
Genetic Analysis ◽  
Dna Barcode ◽  
The Other ◽  
Southeastern Brazil ◽  
Molecular Analyses ◽  
Fin Rays ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

A new species of trichomycterid catfish, Trichomycterus pascuali, is described from Paranapanema basin and is distinguished from all congeners by the possession of five pectoral-fin rays and the absence of pelvic fin, girdle, and muscles. Additional features further differentiate the new species from the other congeners lacking pelvic fins, T. candidus, T. catamarcensis, and T. tropeiro. The identification of T. pascuali is additionally corroborated by genetic divergence based on DNA-barcode analysis. Osteological and myological data unequivocally support the inclusion of the new species in the Trichomycterinae and molecular analyses justify its allocation to the genus Trichomycterus rather than Eremophilus, a trichomycterine taxon traditionally diagnosed by the lack of pelvic fins. Our genetic analysis further indicates that pelvic fins were independently lost in E. mutisii, T. candidus, and T. pascuali. 

A new species of the Asian schilbid catfish genus Clupisoma from Myanmar, with a redescription of Clupisoma prateri Hora (Osteichthyes: Siluriformes: Schilbidae)

Zootaxa ◽  
2004 ◽  
Vol 437 (1) ◽  
pp. 1 ◽  
Author(s):  
CARL J. FERRARIS JR.
Keyword(s):  
New Species ◽  
River Basin ◽  
Pectoral Fin ◽  
Fin Rays ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

The species Clupisoma roosae, new species, is recorded from the upper Irrawaddy River, Myanmar. This species can be distinguished from its sole congener in Myanmar, Clupisoma prateri Hora, 1937, in having a shorter pectoral-fin spine that does not extend past the pelvic-fin origin, a reduced abdominal keel that extends anteriorly only to the level of the pelvic-fin base, only 11 pectoral-fin rays and 45 to 47 branched anal-fin rays. Although the two species occur in the Irrawaddy River, they have not been collected together and appear to inhabit different portions of the river basin. Clupisoma prateri is distributed in the lower and middle reaches of the Irrawaddy River as well as the nearby Sittang, Bago, and Salween rivers, while C. roosae appears to be restricted to the upper reaches of the Irrawaddy. To facilitate comparisons between the two species of Clupisoma in Myanmar, C. prateri is redescribed.

A new species of Trimma (Pisces: Gobiidae) from western Thailand, north-eastern Indian Ocean

Zootaxa ◽  
2021 ◽  
Vol 4915 (2) ◽  
pp. 264-272
Author(s):  
RICHARD WINTERBOTTOM
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Median Ridge ◽  
Dorsal Fin ◽  
Fin Ray ◽  
North Eastern ◽  
Fin Rays ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

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 poorly developed postorbital trench ending at the 5th papilla in row p (which has 6 papillae in total), and row c beneath the eye consists of 6 papillae. When live and freshly collected, the species is very similar in appearance to T. okinawae and T. readerae, with orange to red spots on the head and body. 

Giganthias serratospinosus, a new serranid (Perciformes: Serranidae: Anthiinae) from the island of Lombok in Indonesia

Zootaxa ◽  
2012 ◽  
Vol 3161 (1) ◽  
pp. 60
Author(s):  
WILLIAM T. WHITE ◽  
DHARMADI
Keyword(s):  
New Species ◽  
First Record ◽  
The Other ◽  
Dorsal Fin ◽  
Key Characteristics ◽  
Fin Rays ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Fin Spines ◽  
Pelvic Fin

A new species of anthiine fish (Serranidae) belonging to the genus Giganthias from southeastern Indonesia is described.This is the second species recorded for this genus and the first record of this genus in Indonesian waters. The new species,Giganthias serratospinosus, is clearly separable from the other member of the genus, G. immaculatus, in morphometricsand meristics. The key characteristics of this species include: first to fourth dorsal-fin spines and pelvic-fin spine with expanded, coarsely serrated tips; pectoral-fin rays 13–14, soft dorsal-fin rays 12.

scholarly journals A new species from subtropical Brazil and evidence of multiple pelvic fin losses in catfishes of the genus Cambeva (Siluriformes, Trichomycteridae)

2020 ◽  
Vol 96 (2) ◽  
pp. 715-722
Author(s):  
Wilson J. E. M. Costa ◽  
Caio R. M. Feltrin ◽  
Axel M. Katz
Keyword(s):  
New Species ◽  
Colour Pattern ◽  
Molecular Evidence ◽  
Mountain Range ◽  
Southern Brazil ◽  
Fin Rays ◽  
Evolutionary Event ◽  
A New Species ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

A third pelvic-less species of Cambeva from river basins draining the Geral mountain range in southern Brazil is described. It is distinguished from other congeners lacking pelvic fin and girdle, C. pascuali and C. tropeiro, by having six pectoral-fin rays, 20–23 dorsal procurrent caudal-fin rays, 15–20 opercular and 25–30 interopercular odontodes and a different colour pattern consisting of flank dark brownish-grey with two irregular horizontal rows of small pale yellow grey marks. Whereas available molecular evidence indicates that C. pascuali is more closely related to C. zonata, a species with well-developed pelvic fin, and C. tropeiro is more closely related to C. balios, another species also with well-developed pelvic fin; osteological data strongly suggest that the new species herein described is more closely related to C. diatropoporos than to other congeners. Therefore, this study indicates that the pelvic fin and pelvic-fin support have been lost independently in each of these three species of Cambeva, which corresponds to 11% of all describe species. This result highly contrasts with the closely-related trichomycterine genera Trichomycterus, in which only one in 50 species lost pelvic fin and girdle (0.2%) and Scleronema with all the nine included species having well-developed pelvic fin. These data suggest a stronger tendency to losing pelvic fin in Cambeva, but factors favouring this evolutionary event are still unknown.

Review of the fish genus Epinnula Poey (Perciformes: Gempylidae), with description of a new species from the Pacific Ocean

Zootaxa ◽  
2017 ◽  
Vol 4363 (3) ◽  
pp. 393 ◽  
Author(s):  
HSUAN-CHING HO ◽  
HIROYUKI MOTOMURA ◽  
HARUTAKA HATA ◽  
WEI-CHUAN JIANG
Keyword(s):  
New Species ◽  
Pacific Ocean ◽  
Type Species ◽  
Western Atlantic ◽  
Dorsal Fin ◽  
The Pacific ◽  
Fin Rays ◽  
The Pacific Ocean ◽  
A New Species ◽  
Pelvic Fin

The gempylid fish genus Epinnula is reviewed and two species are recognized. The type species E. magistralis is considered restricted to the western Atlantic Ocean and a new species from the Pacific Ocean is described. The new species, Epinnula pacifica sp. nov., can be distinguished from E. magistralis by 17 or 18 dorsal-fin rays (vs. 15 or 16 in E. magistralis), 15 or 16 anal-fin rays (vs. 13 or 14), 247–268 total scales on lower lateral line (vs. 285–330), a deeper body, relatively high dorsal fin as reflected by the relatively long fin spines and rays, longer dorsal-fin and anal-fin bases, longer pectoral fin, and longer pelvic fin and pelvic spine.

scholarly journals A new species of Pimelodus La Cépède, 1803 (Siluriformes: Pimelodidae) from rio Ribeira de Iguape basin, Brazil

2011 ◽  
Vol 9 (1) ◽  
pp. 127-134 ◽  
Author(s):  
Frank Raynner V Ribeiro ◽  
Carlos Alberto S. de Lucena ◽  
Osvaldo T Oyakawa
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
Branchial Arch ◽  
The Other ◽  
Gill Rakers ◽  
Caudal Fin ◽  
Fin Rays ◽  
A New Species ◽  
Pelvic Fin

Pimelodus multicratifer, a new species, is described from the rio Ribeira de Iguape basin. The new species differs from the other Pimelodus species by the following features: 26 to 30 gill rakers on the first branchial arch; a combination of three to six rows of dark spots regularly or irregularly scattered on the flanks and several small dark spots irregularly scattered on the dorsal surface of head, supraoccipital process, and sometimes on the dorsal and caudal fins; striated lips; maxillary barbels reaching between posterior tip of the pelvic-fin rays and posterior tip of the middle caudal-fin rays.

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