A new species of tadpole-goby, Benthophilus persicus sp. nov. (Teleostei: Gobiidae) from the southern Caspian Sea

Zootaxa ◽  
2021 ◽  
Vol 4980 (1) ◽  
pp. 45-63
Author(s):  
MARCELO KOVAČIĆ ◽  
HAMID REZA ESMAEILI ◽  
FATAH ZAREI ◽  
KEYVAN ABBASI ◽  
ULRICH K. SCHLIEWEN
Keyword(s):  
New Species ◽  
Caspian Sea ◽  
Acute Angle ◽  
Body Width ◽  
Dorsal Fin ◽  
Mouth Width ◽  
Eye Diameter ◽  
Maximum Body ◽  
A New Species ◽  
Southern Caspian Sea

A new gobiid species, Benthophilus persicus sp. nov., is described from the southern Caspian Sea, Iran. The new species is diagnosed by the following character states: dermal fold on cheek well-developed, large, rectangular; chin barbel 1/3–2/3 of eye diameter; maximum body width 15.1–22.9% of standard length; mouth width, 36.3–55.8% of head length; second dorsal fin I+7–8; origin of anal fin in front of vertical through origin of second dorsal fin; dermal tubercles present on body, clearly larger than granules, with two posterior rows of spinules forming an acute angle, always less than right angle; dorsal row of tubercles complete, 22–29; ventral row of tubercles 22–25; ventrolateral row of tubercles absent; tubercles not present on temporal and occipital head regions; granules not present on flanks; transversal suborbital row 6i below posterior end of row b; anterior interorbital transversal row pa with one or two papillae and anterior interorbital transversal papilla row pp with two or three papillae; body with 20–22 transversal ltm rows starting anteriorly behind pectoral axilla and alternating anteriorly with three longitudinal llm rows. 

A new species of Metahomaloptera (Teleostei: Balitoridae) from China

Zootaxa ◽  
2007 ◽  
Vol 1526 (1) ◽  
pp. 63-68
Author(s):  
JIAN YANG ◽  
XIAOYONG CHEN ◽  
JUNXING YANG
Keyword(s):  
New Species ◽  
Head Width ◽  
Pectoral Fin ◽  
Caudal Peduncle ◽  
Jinsha River ◽  
Dorsal Fin ◽  
Mouth Width ◽  
Eye Diameter ◽  
Peduncle Length ◽  
A New Species

A new species of Metahomaloptera, M. longicauda, is described from the lower Jinsha River, China. The new species is distinguished from other species of Metahomaloptera by the following combination of characters: pectoral fin with 11– 15 branched rays, tip of pectoral fin extending beyond origin of dorsal fin, pelvic fin with 10–12 branched rays, pelvicfin tip reaching or extending beyond anus, dorsal fin inserting before middle of body, tip of dorsal fin far from vertical line of caudal-fin base, head width 19.4–22.6% SL, pre-pectoral length 8.4–9.9% SL, pre-anal length 69.0–74.3% SL, caudal peduncle length 17.1–20.7% SL, eye diameter 14.6–16.6% HL, caudal peduncle depth 33.7–43.1% caudal peduncle length, mouth width 63.2–75.5% body width at pectoral-fin origin.

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 Iheringichthys syi (Siluriformes: Pimelodidae), a new pimelodid species from upper Paraná basin, Brazil

2012 ◽  
Vol 10 (1) ◽  
pp. 45-52
Author(s):  
María de las Mercedes Azpelicueta ◽  
Heraldo A. Britski
Keyword(s):  
New Species ◽  
Standard Length ◽  
Anterior Margin ◽  
Head Length ◽  
Dorsal Fin ◽  
Eye Diameter ◽  
Paraná Basin ◽  
Adipose Fin ◽  
Parana Basin ◽  
A New Species

We describe a new species of pimelodid catfish of the genus Iheringichthys from the upper Paraná basin, Brazil. Iheringichthys syi n. sp. is distinguished by the comparatively fine serration along the anterior margin of the pectoral-fin spine, an adpressed dorsal-fin remote from the adipose-fin origin, a large eye (23.2-31.2% of head length), narrow interorbital (16.2-23.0% of head length), long snout (42.0-51.0% of head length), long postorbital length (30.6-34.0% of head length), low adipose fin (4.8-7.8% of standard length), eye diameter 97.0-140.0% of interorbital length, and body with numerous, small dots irregularly scattered on flanks, especially marked on anterior half of flank.

Paracobitis abrishamchiani, a new crested loach from the southern Caspian Sea basin (Teleostei: Nemacheilidae)

Zootaxa ◽  
2019 ◽  
Vol 4545 (3) ◽  
pp. 375 ◽  
Author(s):  
HAMED MOUSAVI-SABET ◽  
SABER VATANDOUST ◽  
MATTHIAS F. GEIGER ◽  
JÖRG FREYHOF
Keyword(s):  
New Species ◽  
Middle East ◽  
Caspian Sea ◽  
Colour Pattern ◽  
Nucleotide Substitutions ◽  
The Caspian Sea ◽  
Dorsal Fin ◽  
Mtdna Coi ◽  
River Drainages ◽  
Southern Caspian Sea

Paracobitis abrishamchiani, new species, is described from the southern Caspian Sea basin, where it is found in the Babol, Haraz, Siah, Tajan, Talar and Kashpal River drainages. It is distinguished from P. hircanica and P. atrakensis, the two other Paracobitis species known from the Caspian Sea basin, by having scales on the flank posterior to the dorsal-fin origin and from its congeners in the Middle East by the position of its dorsal-fin origin, having a roundish posterior narial opening, and a colour pattern consisting of many widely spaced brown spots and blotches. It is further characterized by six diagnostic nucleotide substitutions and a minimum K2P distance of 4.3% to P. persa and 4.6% to P. malapterura in the mtDNA COI barcode region. 

A new species of riffle minnow, Alburnoides holciki, from the Hari River basin in Afghanistan and Iran (Actinopterygii: Cyprinidae)

Zootaxa ◽  
2012 ◽  
Vol 3453 (1) ◽  
pp. 43 ◽  
Author(s):  
BRIAN W. COAD ◽  
NINA G. BOGUTSKAYA
Keyword(s):  
New Species ◽  
Related Species ◽  
Caspian Sea ◽  
Posterior Margin ◽  
Northern Slope ◽  
Dorsal Fin ◽  
Interorbital Width ◽  
Pharyngeal Teeth ◽  
Fin Rays ◽  
A New Species

A new species of riffle minnow, Alburnoides holciki (Cyprinidae), is described from northwestern Afghanistan andnortheastern Iran. It is distinguished from related species by a combination of characters including a well-defined, sharp,scaleless or only slightly scaled ventral keel; a short, slightly pointed snout; a terminal mouth with the tip of the mouthcleft, on a level with the upper half of the pupil; a large eye (orbit width about equal to interorbital width); (46)47–51(55)lateralline scales to posterior margin of hypurals; 2.5–4.2 pharyngeal teeth; usually 8½ branched dorsal-fin rays; usually13–16½ branched anal-fin rays; 40–42, usually 41, total vertebrae; caudal vertebral region longer than abdominal region(most frequent vertebral formulae 20+21, 20+22 and 19+21); and usually 13 or 14 predorsal vertebrae. A comparison withAlburnoides species from rivers of the South Caspian Sea, the northern slope of the Kopetdag Mountains and the Amu Darya basin is provided.

Description of a new species of giant guitarfish, Glaucostegus younholeei sp. nov. (Rhinopristiformes: Glaucostegidae) from the northern Bay of Bengal, Bangladesh

Zootaxa ◽  
2021 ◽  
Vol 4995 (1) ◽  
pp. 129-146
Author(s):  
KAZI AHSAN HABIB ◽  
MD JAYEDUL ISLAM
Keyword(s):  
New Species ◽  
Dna Barcode ◽  
Dorsal Surface ◽  
Dorsal Fin ◽  
Total Length ◽  
Interorbital Space ◽  
Development Corporation ◽  
Mouth Width ◽  
Northern Bay Of Bengal ◽  
A New Species

A new species of giant guitarfish, Glaucostegus younholeei sp. nov., is described from 13 specimens, 730–933 mm total length, collected from fish landing center of Bangladesh Fisheries Development Corporation in Cox’s Bazar district of Bangladesh. The new species is distinguished from congeners in having the following combination of characters: Body brownish or greyish in color with a narrowly wedge-shaped disc, and long narrow bluntly pointed snout (angle 31–40°), and broad oblique nostrils with the narrow anterior opening. Nostrils about half of the mouth width, subequal (0.98–1.33) to internasal width; ~55–57 nasal lamellae; anterior nasal flaps slightly penetrating into internasal space, their interspace 2.20– 2.61 in length of the posterior nasal aperture. Orbit very small in adults, diameter 8.19–11.62 in preorbital length, 2.25–2.69 in interorbital space. Rostral ridges almost joined along their entire length; margin of cranium sharply demarcated before eyes. Spiracular folds very short and widely separated. Skin rough, densely covered with small denticles, more coarsely granular on the dorsal surface than ventrally, enlarged between orbits and in a distinct band between nape and first dorsal fin. Tail relatively longer, length 1.15–1.48 in disc length; dorsal fins narrowly spaced, interspace 1.32–2.11 in base length of the first dorsal fin. Clasper length in adult male 4.37–5.70 in total length. Phylogenetic analysis of DNA barcode sequences also shows the clear divergence of Glaucostegus younholeei from other congeneric species obtained from GenBank. A key is provided to the 8 known members including new species of the genus Glaucostegus.  

Gymnothorax hansi, a new species of moray eel (Teleostei: Anguilliformes: Muraenidae) from the Comoro Islands, Western Indian Ocean

Zootaxa ◽  
2004 ◽  
Vol 515 (1) ◽  
pp. 1
Author(s):  
PHILLIP C. HEEMSTRA
Keyword(s):  
New Species ◽  
Western Indian Ocean ◽  
The Body ◽  
Dorsal Fin ◽  
Gill Opening ◽  
Posterior Nostril ◽  
Eye Diameter ◽  
Tail Tip ◽  
A New Species ◽  
Moray Eel

Gymnothorax hansi, a new species of moray eel, is described from three specimens caught in ~ 146 m at Grand Comoro (Ngazidja) Island in the Comoros Islands. The length of the head plus the body is distinctly longer than tail; the dorsal fin origin is at a vertical midway between the gill opening and the rear edge of the eye. The head length is 11 to 12% total length. The colour is chestnut brown dorsally on the head, body and most of the tail; the dorsal and anal fins are brown anteriorly, blackish posteriorly with a bright white margin from dorsal fin origin round the tail tip to the anal fin origin; anterior nostril tube, posterior nostril mound and iris are yellow; head and ventrolateral part of body of 101 cm adult male golden brown, with several, irregular, distinct, dusky or black spots scattered over most of the body, tail and dorsal fin; head of 101 cm adult female brown dorsally, paler below; female with a few faint dusky spots on body and tail; both sexes with pores on jaws set in white spots. Teeth small, sharp, caniniform, slightly curved, uniserial on maxillae and dentaries; longest intermaxillary tooth equals 64% eye diameter; vomer with 3 minute teeth. The vertebral counts are higher than in most morays: 4 predorsal, 82 84 preanal and 183 185 total.

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.

scholarly journals Prognathodes geminus, a new species of butterflyfish (Teleostei, Chaetodontidae) from Palau

ZooKeys ◽  
2019 ◽  
Vol 835 ◽  
pp. 125-137 ◽  
Author(s):  
Joshua M. Copus ◽  
Richard L. Pyle ◽  
Brian D. Greene ◽  
John E. Randall
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Genetic Divergence ◽  
Western Indian Ocean ◽  
Color Pattern ◽  
Body Width ◽  
Body Depth ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species

A new species of the butterflyfish genus Prognathodes (Chaetodontidae) is described from two specimens collected at a depth of 116 m off Ngemelis Island, Palau. Prognathodesgeminussp. n. is similar to P.basabei Pyle & Kosaki, 2016 from the Hawaiian archipelago, and P.guezei (Maugé & Bauchot, 1976) from the western Indian Ocean, but differs from these species in the number of soft dorsal-fin rays, size of head, body width, and body depth. There are also subtle differences in life color, and substantial differences in the mtDNA cytochrome oxidase I sequence (d ≈ 0.08). Although genetic comparisons with P.guezei are unavailable, it is expected that the genetic divergence between P.guezei and P.geminus will be even greater than that between P.geminus and P.basabei. It is named for the strikingly similar color pattern it shares with P.basabei.

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