Luciogobius yubai, a new species of gobioid fish (Teleostei: Gobiidae) from Japan

Zootaxa ◽  
2019 ◽  
Vol 4657 (3) ◽  
pp. 565-572
Author(s):  
YUJI IKEDA ◽  
KAZUAKI TAMADA ◽  
KENTAROU HIRASHIMA
Keyword(s):  
New Species ◽  
Posterior Part ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Eye Diameter ◽  
Dermal Flaps ◽  
Fin Length ◽  
A New Species ◽  
Pelvic Fin

A new gobioid fish Luciogobius yubai sp. nov. is described based on specimens collected from Wakayama and Shizuoka Prefectures, Japan. This species is distinguished from congeners by the following combination of characters; second dorsal-fin I, 9, anal-fin I, 10, pectoral-fin 17 or 18, vertebrate number 16+19=35, the first space between anterior two pterygiophores of second dorsal-fin placed the neural spines of vertebrae 17–18 or 17, four to seven developed dermal flaps under the eye longitudinally, posterior part of eye ridge protruded posteriorly, pectoral-fin with a long uppermost free ray, eye diameter 7.3–10.6 % of head length, pectoral-fin length 14.4–16.9 % of standard length (SL) , second dorsal-fin length 9.7–11.8 % SL, anal-fin ray length 9.1–11.1 % SL, pelvic-fin length 7.3–10.8 % SL, head and body with brownish orange coloration when alive or fresh.

Trichomycterus argos (Teleostei: Siluriformes: Trichomycteridae), a new species from the Doce River Basin, Eastern Brazil

Zootaxa ◽  
2012 ◽  
Vol 3352 (1) ◽  
pp. 60 ◽  
Author(s):  
ANTÔNIO QUEIROZ LEZAMA ◽  
MAURO L. TRIQUES ◽  
PATRÍCIA S. SANTOS
Keyword(s):  
New Species ◽  
Southeastern Brazil ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Eastern Brazil ◽  
Fin Ray ◽  
Eye Diameter ◽  
Doce River ◽  
A New Species ◽  
Pelvic Fin

Trichomycterus argos, new species, is described from the Rio Doce basin, situated in the Serra do Brigadeiro (part of theSerra da Mantiqueira) range, southeastern Brazil. The new species is diagnosed by the following characteristics: presenceof six branched rays in the pectoral fin; presence of pelvic fins; tip of nasal barbels extending to posterior border of oper-cular plate of odontodes; presence of a large foramen for ramus lateralis accessorius facialis, visible in dorsal view, in theparietosupraoccipital bone; transverse and straight border between the parietosupraoccipital and frontal bones; pectoral-fin ray prolonged as a filament; body covered with spots that seldom attain eye diameter; pelvic-fin origin placed one or two ocular diameters anterior to dorsal-fin origin; abscence of spots fused as elongated marks on dorsum or flank.

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. 

Glossanodon macrocephalus, a new argentine fish (Argentinidae) from the Arabian Sea

Zootaxa ◽  
2019 ◽  
Vol 4688 (2) ◽  
pp. 289-294 ◽  
Author(s):  
KINATTUMKARA BINEESH ◽  
MUSALIYARAKAM NASHAD ◽  
K.V. ANEESH KUMAR ◽  
HIROMITSU ENDO
Keyword(s):  
New Species ◽  
Arabian Sea ◽  
Dark Spot ◽  
Pectoral Fin ◽  
Black Stripe ◽  
Dorsal Fin ◽  
Fin Rays ◽  
Eye Diameter ◽  
A New Species ◽  
Pelvic Fin

A new species of argentinid fish, Glossanodon macrocephalus Bineesh & Endo, from the Arabian Sea, off the southwestern coast of India, is described on the basis of four specimens (129–164 mm SL). The new species clearly differs from its congeners in the following combination of characters: dorsal-fin rays 10–11; pectoral-fin rays 21–23; anal-fin rays 12–13; pelvic-fin rays 11–12; branchiostegal rays 5; gill rakers on first arch 30–36; vertebrae 47–48; a patch of small conical teeth on middle of lower jaws; predorsal 49–51% SL; prepectoral 36–39% SL; prepelvic 57–58% SL; distance from pelvic to anal-fin origin 26–28% SL; head length 35–39% SL; eye diameter 22–26% HL; snout length 28–30% HL; location of anus immediately anterior to anal-fin origin; broad longitudinal black stripe above lateral line; dark spot on the base to half of pectoral fin; and no teeth on tongue. The new species is a benthopelagic dweller on muddy bottoms in depths of around 300–600 m. 

A new species of Trichomycterus (Siluriformes: Trichomycteridae) from the Andean Cordillera of Perú, with comments on relationships within the genus

Zootaxa ◽  
2007 ◽  
Vol 1545 (1) ◽  
pp. 49-57 ◽  
Author(s):  
LUIS FERNÁNDEZ ◽  
ROBERTO QUISPE CHUQUIHUAMANÍ
Keyword(s):  
New Species ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Short Filament ◽  
The Andes ◽  
Andean Cordillera ◽  
Fin Ray ◽  
A New Species ◽  
Head Muscles ◽  
Pelvic Fin

Trichomycterus megantoni, new species, is described from several localities on the Andes of Perú at 1,360 to 2,200 m elevation. The new species differs from all congeners in the possession of autapomorphic characters: ventral interopercle with thickened integument and a reduced foramen in the frontal-supraoccipital. It is further distinguished by the following combination of characteristics: the tip of the pelvic fin when depressed does not reach the anus, the presence of a premaxilla rectangle, the first dorsal fin pterygiophore insertion at or posterior to vertebra 19 to 21, the supraorbital canal with pore 3, the outer tooth row with conic teeth, the head muscles not hypertrophied, the first pectoral fin ray prolonged as thin short filament, the possession of 17 pairs of ribs on each side, and 37 to 40 vertebrae.

A review of the genus Pareuchiloglanis (Sisoridae) from the Lancangjiang (upper Mekong River) with descriptions of two new species from Yunnan, China

Zootaxa ◽  
2007 ◽  
Vol 1440 (1) ◽  
pp. 1 ◽  
Author(s):  
XU LI ◽  
WEI ZHOU ◽  
ALFRED W. THOMSON ◽  
QING ZHANG ◽  
YING YANG
Keyword(s):  
New Species ◽  
Pectoral Fin ◽  
Caudal Fin ◽  
Lower Lip ◽  
Dorsal Fin ◽  
Gill Opening ◽  
Fin Ray ◽  
Two New Species ◽  
Adipose Fin ◽  
Pelvic Fin

This study reports five species of Pareuchiloglanis in the Lancangjiang drainage of China, including descriptions of two new species: P. abbreviatus sp. nov., P. gracilicaudata, P. kamengensis, P. myzostoma and P. prolixdorsalis sp. nov. The two new species are distinguished from P. feae, P. poilanei, P. sichuanensis and P. tianquanensis by a shorter adipose-fin base and the adipose-fin base being separated from the caudal fin, differ from P. sinensis, P. macrotrema, P. longicauda and P. rhabdurus by a more restricted gill opening (not reaching the base of the first pectoral-fin element ventrally), and differ from P. songmaensis by an anal-fin ray count of ii-3-4 (vs. ii-8). Pareuchiloglanis abbreviatus is distinguished from congeners by the tip of the dorsal fin reaching the origin of the adipose fin when depressed. Pareuchiloglanis prolixdorsalis is distinguished from P. gongshanensis, P. macropterus and P. kamengensis by lacking a sulcus between the lower lip and the base of the maxillary barbel, and differs from P. anteanalis by the shorter pectoral fin, the pectoral fin not reaching to the origin of pelvic fin. It differs from P. gracilicaudata, P. myzostoma, P. nebulifer and P. robusta by a caudal-fin ray count of 6+7 (vs. 7+8), and differs from P. abbreviatus by the tip of dorsal fin not reaching to the origin of the adipose fin when depressed (vs. reaching). It differs from P. songdaensis by the distance between the origin of the pelvic fin to the base of the anal fin being longer than that to the mouth (vs. equal).  

Clarias gracilentus, a new walking catfish (Teleostei: Clariidae) from Vietnam and Cambodia

Zootaxa ◽  
2011 ◽  
Vol 2823 (1) ◽  
pp. 61 ◽  
Author(s):  
HEOK HEE NG ◽  
DANG KHANH HONG ◽  
NGUYEN VAN TU
Keyword(s):  
Species Complex ◽  
Head Width ◽  
Body Depth ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Fin Rays ◽  
Eye Diameter ◽  
Process Length ◽  
Fin Length ◽  
Pelvic Fin

Clarias gracilentus, a new Southeast Asian walking catfish species, is described from Phu Quoc Island (Vietnam) off the coast of southeastern Cambodia and from mainland southeastern Cambodia. The new species is a member of the C. nieuhofii species complex, and can be distinguished from congeners in the complex in having a combination of: head width 11.9–12.9% SL, distance between the occipital process and the base of the first dorsal-fin ray 5.3–8.4% SL, pectoral-fin length 8.5–10.1% SL, body depth at anus 8.2–11.7% SL, pelvic-fin length 4.3–5.5% SL, length of anal-fin base 60.0–63.9% SL, eye diameter 5.4–7.2% HL, interorbital distance 42.7–48.0% HL, occipital-process length 7.8–14.7% HL, 96–101 dorsal-fin rays, 84–89 anal-fin rays and 80–84 total vertebrae.

A new species of the greeneye genus Chlorophthalmus (Teleostei: Chlorophthalmidae) from the central North Pacific

Zootaxa ◽  
2019 ◽  
Vol 4555 (3) ◽  
pp. 396
Author(s):  
KYOJI FUJIWARA ◽  
HIDETOSHI WADA ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
North Pacific ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Fin Ray ◽  
Seamount Chain ◽  
Fin Length ◽  
Central North Pacific

Chlorophthalmus imperator sp. nov. (Teleostei: Chlorophthalmidae) is described on the basis of nine specimens (98.1–174.8 mm SL) from the Emperor Seamount Chain in the central North Pacific. The new species is characterized by the following combination of characters: 49–51 lateral-line scales; 6 scale rows above lateral line; 3 + 19–22 = 22–25 (modally 22) gill rakers; outermost tooth patches of lower jaw with 6–14 large thorn-shaped teeth, the tips projecting in advance of lower-jaw profile; lower-jaw symphysis with two distinct moderately-sized projections; tongue without teeth; pelvic-fin origin vertically below 4th or 5th (usually 5th) dorsal-fin ray base; head length 26.7–28.9 (mean 27.7) % SL; snout length 6.9–7.7 (7.3) % SL; horizontal orbit diameter 11.9–12.9 (12.3) % SL; upper-jaw length 11.7–13.2 (12.6) % SL; maxillary depth 3.1–3.8 (3.4) % SL; pre-dorsal-fin length 34.2–36.6 (35.3) % SL; pre-pectoral-fin length 27.3–29.8 (27.9) % SL; anus to anal-fin origin length 27.3–29.9 (28.5) % SL; pectoral-fin length 21.0–24.9 (22.7) % SL. 

Leptobotia micra, a new species of loach (Teleostei: Botiidae) from Guilin, southern China

Zootaxa ◽  
2017 ◽  
Vol 4250 (1) ◽  
pp. 90
Author(s):  
JÖRG BOHLEN ◽  
VENDULA ŠLECHTOVÁ
Keyword(s):  
New Species ◽  
Southern China ◽  
Lower Lobe ◽  
Pearl River Basin ◽  
Guangxi Province ◽  
Dorsal Midline ◽  
Eye Diameter ◽  
Fin Length ◽  
A New Species ◽  
Pelvic Fin

Leptobotia micra, new species, is described from the upper Li River (Pearl River basin) around Guilin in Guangxi province, southern China. The new species is evidently the smallest species of Leptobotia, with females of 45‒46 mm SL bearing oocytes. It can be distinguished from all other species of Leptobotia by a combination of the following characters: no dark bars or dorsal saddles on body, a row of white dots along dorsal midline, 4+34 vertebrae, a predorsal distance of 58.1‒59.0% SL, eye diameter 1.8‒2.0 % SL, pelvic fins not reaching anus, an emarginated caudal fin (length of median rays 1.3‒1.4 times in length of lower lobe) and the anus positioned distinctly closer to anal-fin origin than to pelvic-fin base. 

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 New species of Eugerres from the Usumacinta Province, México and Guatemala with a redescription of E. mexicanus (Steindachner, 1863) (Teleostei: Gerreidae)

2013 ◽  
Vol 11 (2) ◽  
pp. 307-318 ◽  
Author(s):  
Adrian F. Gonzalez-Acosta ◽  
Rocio Rodiles-Hernandez
Keyword(s):  
New Species ◽  
The Body ◽  
Body Depth ◽  
Morphometric Characters ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Fin Rays ◽  
Freshwater Habitats ◽  
Eye Diameter ◽  
Pelvic Fin

Eugerres castroaguirrei, new species is described from the río Grijalva-Usumacinta basin of southeastern Mexico and northern Guatemala. Eugerres castroaguirrei and E. mexicanus are distinguishable from their marine estuarine congeners by the dorsal-fin origin posterior to the insertion of the pectoral and pelvic fins, a shorter and broad based supraoccipital crest, and a distinct geographic distribution restricted to freshwater habitats. Eugerres castroaguirrei differs from E. mexicanus by diagnostic characters of the body skeleton: anterior process of supraoccipital convex, infraorbital 1 with foramen, premaxillary ascending process developed with margins curved, pharyngeal plate granular and not serially arranged, and dorsal and anal fin-rays reduced. Likewise, E. castroaguirrei is characterized by an oblong and laterally thicker body (37.6-58.5% HL); greater body depth (33.8-42.1% SL), and eye diameter (23.3-31.6% HL); in addition to 16 significant morphometric characters: length of the second dorsal-fin spine 23.2-34.2% SL; depressed second dorsal-fin spine (extending to base of third to fourth dorsal-fin rays); length of second anal-fin spine 11.1-20.6% SL, depressed second anal-fin spine extending to the base of third to fourth anal-fin rays not reaching the distal point of last anal-fin ray; pelvic-fin spine length 49.7-65.0% in the first pelvic-fin ray length

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