scholarly journals A new species of leaf fish, Nandus banshlaii (Perciformes: Nandidae) from West Bengal, India

2020 ◽  
Author(s):  
R. Kapuri ◽  
A. K. Sinha ◽  
P. de ◽  
R. Roy ◽  
S. Bhakat
Keyword(s):  
West Bengal ◽  
Present Species ◽  
Dark Spot ◽  
Base Length ◽  
Caudal Peduncle ◽  
Dorsal Fin ◽  
Eye Diameter ◽  
Brown Body ◽  
Fin Length ◽  
A New Species

AbstractNandus banshlaii, sp. nov. is described from the Banshlai River of West Bengal. This species is distinguished from all its congeners in having a golden brown body in live and a combination of characters like longest head and snout length (44.28% SL and 35.58% HL respectively) and from its two Indian congeners in containing largest eye diameter (22.22% HL), longest pre-dorsal length (47.16% SL), shortest pectoral fin length (14.60% SL) and smallest dorsal fin base length (45.53% SL).Like all three congeners of Ganga-Brahmaputra-Meghna river basin of Gangetic delta it possess a dark spot on caudal peduncle.To differentiate the present species from other two Indian congeners of Nandus, N. nandus and N. andrewi, PCA and heatmap is performed and a key of all three species is also provided.

A new species of leaf fish, Nandus andrewi (Teleostei: Perciformes: Nandidae) from northeastern India

Zootaxa ◽  
2008 ◽  
Vol 1731 (1) ◽  
pp. 24 ◽  
Author(s):  
HEOK HEE NG ◽  
ZEEHAN JAAFAR
Keyword(s):  
New Species ◽  
Dark Spot ◽  
Caudal Peduncle ◽  
Body Depth ◽  
Northeastern India ◽  
Eye Diameter ◽  
Brown Body ◽  
Fin Length ◽  
A New Species ◽  
Pelvic Fin

Nandus andrewi sp. nov. is described from the Ichamati River in northeastern India. It differs from all congeners in having a bluish white (vs. mottled brown) body in life, and a combination of the following characters: body depth 24.3– 29.1% SL, pectoral fin length 15.1–18.5%, pelvic fin length 16.2–18.9% SL, eye diameter 18.3–21.7% HL, a dark spot on the caudal peduncle, and 45–52 lateral-line scales. A key to the species of Nandus is also provided.

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. 

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.

Amblyceps cerinum, a new catfish (Teleostei: Amblycipitidae) from northeastern India

Zootaxa ◽  
2010 ◽  
Vol 2672 (1) ◽  
pp. 50 ◽  
Author(s):  
HEOK HEE NG ◽  
JEREMY J. WRIGHT
Keyword(s):  
South Asian ◽  
West Bengal ◽  
New South ◽  
Taxonomic Status ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Adipose Fin ◽  
Peduncle Length ◽  
Fin Length

Amblyceps cerinum, a new South Asian amblycipitid catfish species, is described from the Brahmaputra River drainage in northern West Bengal, India. The new species can be distinguished from congeners in having a combination of upper jaw longer than lower, incomplete lateral line terminating beneath posterior insertion of dorsal fin, length of adipose-fin base 32.4–38.3% SL, caudal peduncle length 21.9–24.5% SL, caudal peduncle depth 9.2–11.2% SL, 41–44 postWeberian vertebrae, posterior end of adipose fin separated from dorsal procurrent caudal-fin rays by distinct notch, and truncate caudal fin. The taxonomic status of A. tenuispinis is also discussed and a neotype designated for this species.

A new species of Microschemobrycon (Characiformes: Characidae) from Rio Xingu basin, Brazil

Zootaxa ◽  
2019 ◽  
Vol 4576 (2) ◽  
pp. 326
Author(s):  
WILLIAN M. OHARA ◽  
FERNADO C. JEREP ◽  
MARCEL R. CAVALLARO
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Dark Spot ◽  
Ventral Margin ◽  
Caudal Peduncle ◽  
Dorsal Fin ◽  
Dark Stripe ◽  
Lower Jaw ◽  
Restricted Distribution ◽  
A New Species

A new species of Microschemobrycon with a restricted distribution was recently discovered in the Rio Curuá, Rio Xingu basin, Pará, Brazil. Microschemobrycon cryptogrammus new species can be promptly distinguished from all congeners by the presence of a rounded, dark, conspicuous caudal-peduncle blotch and by a subjacent dark midlateral stripe visible in life. Additionally, the new species can be distinguished from all its congeners, except M. elongatus, by the presence of a longitudinal dark stripe along the lower jaw. The new species can be distinguished from M. elongatus by presenting lateral line with 36–38 pored scales, anterior and posterior nostrils coalescend, dark chromatophores concentrated along the ventral margin of the caudal peduncle and by the presence in life of a dark spot at the base of the dorsal-fin origin. 

Glyptothorax coracinus, a new species of hillstream catfish from Cambodia (Teleostei: Sisoridae)

Zootaxa ◽  
2008 ◽  
Vol 1839 (1) ◽  
pp. 60 ◽  
Author(s):  
HEOK HEE NG ◽  
WALTER J. RAINBOTH
Keyword(s):  
Dorsal Surface ◽  
Color Pattern ◽  
The Body ◽  
Caudal Peduncle ◽  
Body Depth ◽  
Fin Ray ◽  
Eye Diameter ◽  
Adipose Fin ◽  
Brown Body ◽  
A New Species

Glyptothorax coracinus sp. nov. is described from the western face of the Krâvanh (Cardamom) Mountains and Dâmrei (Elephant) Mountains in southwestern Cambodia. It can be distinguished from congeners by its color pattern consisting of blackish brown body with indistinct pale longitudinal stripes on the lateral line and mid-dorsal regions of the body, pale markings on the nuchal plate absent, length of adipose-fin base 12.3–14.5% SL, length of caudal peduncle 18.6– 21.0% SL, depth of caudal peduncle 7.9–9.4% SL, body depth at anus 11.0–14.6% SL, eye diameter 6.3–7.2% HL, 36– 37 vertebrae, tubercles on the dorsal surface of the head with a single, median ridge, and anastomosing striae absent on thoracic adhesive apparatus that does not reach the level of the base of the last pectoral-fin ray.

Akysis bilustris, a new species of catfish from southern Laos (Siluriformes: Akysidae)

Zootaxa ◽  
2011 ◽  
Vol 3066 (1) ◽  
pp. 61
Author(s):  
HEOK HEE NG
Keyword(s):  
New Species ◽  
Base Length ◽  
Caudal Peduncle ◽  
Body Depth ◽  
Pectoral Spine ◽  
Eye Diameter ◽  
Adipose Fin ◽  
Peduncle Length ◽  
A New Species ◽  
Pelvic Fin

Akysis bilustris, new species, is described from the Xe Kong drainage (a subdrainage of the Mekong River) in southern Laos. It is distinguished from congeners in having a unique combination of the following characters: eye diameter 14.0– 17.5% HL, serrae on posterior margin of pectoral spine 2–3 and longer than half width of spine, pectoral fin reaching to or overlapping pelvic-fin base (length 24.5–29.3% SL), adipose-fin base length 14.3–18.3% SL, body depth at anus 11.4– 13.8% SL, caudal-peduncle length 19.6–23.4% SL, caudal-peduncle depth 6.7–9.2% SL, caudal fin emarginate, and vertebrae 30–31.

Scolopsis meridiana, a new species of monocle bream (Perciformes: Nemipteridae) from northern Australia

Zootaxa ◽  
2018 ◽  
Vol 4500 (2) ◽  
pp. 222 ◽  
Author(s):  
JUMPEI NAKAMURA ◽  
BARRY C. RUSSELL ◽  
GLENN I. MOORE ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Anterior Margin ◽  
Northern Australia ◽  
Caudal Peduncle ◽  
Dorsal Fin ◽  
Lateral Body ◽  
Posterior Nostril ◽  
Geographic Populations ◽  
Fin Length ◽  
A New Species

Scolopsis meridiana n. sp., described from 30 specimens collected from northern Australia, is closely related to S. taenioptera, both species having a dorsal scaled area on the head extending anteriorly to between the anterior margin of the eye and anterior nostril, the upper part of the pectoral-fin base with a reddish blotch when fresh, and lacking a small antrorse spine below the eye. However, the new species is distinguished from the latter by having two bands across the snout dorsum (vs. one band in S. taenioptera), 18–20 diagonal lines on the lateral body surface below the lateral line (diagonal lines absent), the posterior nostril horizontally elongated (vertically elongated), a deep caudal-peduncle and short pre-dorsal-fin length. Scolopsis meridiana is distributed in northern Australia, whereas S. taenioptera occurs in Southeast Asia. Two geographic populations of S. taenioptera (Philippines and remaining Southeast Asian region) are recognized following morphological and genetic analyses. 

Pterocryptis subrisa, a new silurid catfish (Teleostei: Siluridae) from northeastern India

Zootaxa ◽  
2018 ◽  
Vol 4500 (1) ◽  
pp. 126 ◽  
Author(s):  
HEOK HEE NG ◽  
LALRAMLIANA LALRAMLIANA ◽  
SAMUEL LALRONUNGA
Keyword(s):  
Unique Combination ◽  
Caudal Peduncle ◽  
Body Depth ◽  
Northeastern India ◽  
Dorsal Fin ◽  
Orbital Margin ◽  
Fin Rays ◽  
Species Being ◽  
Fin Length ◽  
A New Species

Pterocryptis subrisa, a new species of silurid catfish from the Kaladan River drainage in northeastern India, is described in this study. It can be distinguished from congeners by the unique combination of the following characters: supralabial fold extending posteriorly beyond vertical through posterior orbital margin; nearly circular eye; head length 17.6–19.6% SL; head depth 10.6–11.9% SL; dorsal-fin height 2.6–4.7% SL; 2 dorsal-fin rays; pectoral-fin length 11.8–14.0% SL; body depth at anus 14.4–16.7% SL; caudal peduncle depth 6.8–8.5% SL; 66–75 anal-fin rays; confluent anal and caudal fins separated by deep notch; 17 principal caudal-fin rays; and 57 vertebrae. The generic status of Pterocryptis taytayensis is discussed, with this species being reassigned to Ompok. 

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.

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