A new species Ophichthus chennaiensis sp. nov. (Anguilliformes: Ophichthidae) from the southeast coast of India

Zootaxa ◽  
2020 ◽  
Vol 4895 (2) ◽  
pp. 291-296
Author(s):  
MRINAL KUMAR DAS ◽  
ANIL MOHAPATRA ◽  
KUMAR R. RAJENDAR ◽  
RANJANA BHASKAR
Keyword(s):  
New Species ◽  
Pectoral Fin ◽  
Southeast Coast Of India ◽  
Dorsal Fin ◽  
Southeast Coast ◽  
Mandibular Teeth ◽  
Fin Length ◽  
A New Species ◽  
Preanal Length

A new species of snake eel, Ophichthus chennaiensis sp. nov. (Anguilliformes: Ophichthidae: Ophichthinae), is described on the basis of a specimen collected from dumped fish disposed of by bottom trawlers at Kasimedu fishing harbour, Chennai. Ophichthus chennaiensis sp. nov is distinguished from its congeners by having its dorsal-fin origin one pectoral-fin length behind the pectoral-fin tip, preanal length 2.4 in TL, biserial maxillary, uniserial mandibular teeth, biserial to uniserial vomerine teeth, and its vertebrae (predorsal 19, preanal 53, and total vertebrae 154). 

Ophichthus kailashchandrai sp. nov. (Anguilliformes: Ophichthidae): a new species of snake eel from Indian waters, Bay of Bengal

Zootaxa ◽  
2020 ◽  
Vol 4728 (2) ◽  
pp. 283-288
Author(s):  
ANIL MOHAPATRA ◽  
DIPANJAN RAY ◽  
SWARUP RANJAN MOHANTY ◽  
SUBHRENDU SEKHAR MISHRA
Keyword(s):  
New Species ◽  
Bay Of Bengal ◽  
West Bengal ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Vertebral Count ◽  
Indian Waters ◽  
Mandibular Teeth ◽  
A New Species ◽  
Preanal Length

A new snake eel (Anguilliformes: Ophichthidae: Ophichthinae) species, Ophichthus kailashchandrai sp. nov., is described from three specimens, collected from the Shankarpur fishing harbour located on the northern part of the Bay of Bengal, West Bengal, India. Ophichthus kailashchandrai sp. nov. is distinguished from its congeners by having its dorsal-fin origin at the posterior third of the pectoral fin, preanal length 2.6–2.8 in TL, uniserial maxillary and mandibular teeth and vertebral count (predorsal vertebrae 14–15, preanal vertebrae 54–55, and total vertebrae 180–182). 

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.

Description of a new species of deep-water snake eel, Ophichthus mccoskeri (Ophichthidae: Ophichthinae) from Andaman Sea, India

Zootaxa ◽  
2019 ◽  
Vol 4686 (1) ◽  
pp. 112-118
Author(s):  
K. S. SUMOD ◽  
YUSUKE HIBINO ◽  
HASHIM MANJABRAYAKATH ◽  
V. N. SANJEEVAN
Keyword(s):  
New Species ◽  
Deep Water ◽  
Deep Sea ◽  
Short Distance ◽  
Andaman Sea ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Water Snake ◽  
Mandibular Teeth ◽  
A New Species

A deep-sea species of snake eel (family Ophichthidae, subfamily Ophichthinae) Ophichthus mccoskeri sp. nov. is described based on 6 specimens (331–447 mm total length) trawled at 314–363 m depth in Andaman waters, India. This species is differentiated from its deep-water congeners by a combination of characters such as its large eyes, dorsal-fin origin a short distance behind pectoral-fin tip, anal fin black posteriorly, three preopercular pores, maxillary and mandibular teeth ending as triserial, and in a vertebral formula of 20/55/153. 

Exostoma dulongensis, a new glyptosternine catfish from the Irrawaddy basin, Yunnan, China (Siluriformes: Sisoridae) 

Zootaxa ◽  
2020 ◽  
Vol 4802 (1) ◽  
pp. 99-110
Author(s):  
ZHAOJUN LUO ◽  
XIAOYONG CHEN
Keyword(s):  
New Species ◽  
Yunnan Province ◽  
Posterior Edge ◽  
Pectoral Fin ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Adipose Fin ◽  
A New Species ◽  
Preanal Length ◽  
Pelvic Fin

Exostoma dulongensis sp. nov., a new species of sisorid catfish from the genus Exostoma Blyth, 1860, is described from the Xiaojiang River and Dulongjiang River, tributaries of N’mai Hka River in the Irrawaddy basin, Yunnan Province, China. Exostoma dulongensis sp. nov. is the seventeenth species reported within this genus and is most similar to Exostoma ericinum Ng 2018 in morphology but can be distinguished by the following characters: tip of pelvic fin far from anus vs. reaching when depressed; nasal barbel reaching or surpassing posterior edge of orbit vs. just reaching middle of orbit; greater preanal length (70.9%–80.1% SL vs. 67.7%–70.5%); and longer dorsal to adipose length (13.5%–23.8% SL vs. 8.0%–12.0%). The new species can also be distinguished from all known congeners by the following characters: adipose fin confluent with caudal fin and without incision; caudal fin weakly forked; 40–43 vertebrae; and pectoral fin extending to vicinity of dorsal fin origin. 

scholarly journals The eel genus Macrocephenchelys (Anguilliformes: Congridae) in Taiwan, with description of a new species

Zootaxa ◽  
2018 ◽  
Vol 4454 (1) ◽  
pp. 186
Author(s):  
JAMES LIN ◽  
KWANG-TSAO SHAO ◽  
DAVID G. SMITH
Keyword(s):  
New Species ◽  
The Other ◽  
Black Pigment ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Total Length ◽  
A New Species ◽  
Preanal Length

The congrid eel genus Macrocephenchelys in Taiwan is reviewed. Three species are recognized. Macrocephenchelys brachialis was originally described from Indonesia and is also known from Taiwan, Madagascar, and Vanuatu; it is common in Taiwan but known from few specimens elsewhere. Macrocephenchelys brevirostris was described from Taiwan, where it is common; its occurrence outside Taiwan is uncertain. Macrocephenchelys nigriventris sp. nov. is described here from 28 specimens collected in Taiwan. Macrocephenchelys brachialis is distinguished from the other two species by its more elongate body, more posterior dorsal-fin origin (behind tip of pectoral fin), shorter head (less than 10% total length), presence of a supratemporal pore, absence of fleshy papillae dorsally on the head, absence of sensory pits on the abdomen, and more than 170 vertebrae. Macrocephenchelys nigriventris is distinguished from M. brevirostris by the presence of a patch of black pigment around the anus and adjacent abdomen (absent in M. brevirostris), preanal length 24–28% total length (27–34% in M. nigriventris), and 128–135 vertebrae (147–154 in M. brevirostris). The only other species currently recognized is M. soela from Australia; it is distinguished from all the others by the more anterior origin of the dorsal fin, over the middle of the pectoral fin (vs. over or behind the tip of the pectoral fin).

scholarly journals A new species of leaffish Polycentrus Müller & Troschel, 1849 (Percomorpha: Polycentridae) from the rio Negro, Brazil

2014 ◽  
Vol 12 (4) ◽  
pp. 747-753 ◽  
Author(s):  
Daniel Pires Coutinho ◽  
Wolmar Benjamin Wosiacki
Keyword(s):  
New Species ◽  
Posterior Margin ◽  
Lower Edge ◽  
Posterior Edge ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Rio Negro ◽  
Ventral Edge ◽  
A New Species

A new species of Polycentrusis described from the rio Negro, in Brazil. It is distinguished from P. schomburgkii by the presence of two dark postocular and one subocular band, all smaller than orbital diameter, blunt snout, isognathous mouth, reduction of the serrations on the lower edge of the lacrimal-spines ranging from zero to two tiny spines at the posterior end, intensely serrated edge of the interopercle, fully serrated posterior edge of the vertical arm of the preopercle, presence of five pungent opercular spines, subopercle broadly serrated along most of its posterior ventral edge, presence of serrations dorsally on the posterior margin of the cleithrum, fourth ray of pectoral fin reaching the vertical through the anal-fin origin, 19-21 predorsal scales, 19-20 scales on dorsal-fin base, 12-14 scales on anal-fin base, and absence of a median opercular blotch.

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. 

A new species of snake eel, Pisodonophis sangjuensis (Anguilliformes: Ophichthidae) from Korea

Zootaxa ◽  
2011 ◽  
Vol 2758 (1) ◽  
pp. 57 ◽  
Author(s):  
HWAN-SUNG JI ◽  
JIN-KOO KIM
Keyword(s):  
Mitochondrial Dna ◽  
New Species ◽  
12S Rrna ◽  
Pectoral Fin ◽  
Closely Related Species ◽  
Dorsal Fin ◽  
Posterior Nostril ◽  
South Sea ◽  
A New Species ◽  
Rrna Sequences

A new snake eel, Pisodonophis sangjuensis, is described based on 24 specimens collected from the South Sea of Korea (water depth 5–100 m) between 2005 and 2010. This species is characterized by the following morphological features: fleshy protrusions before and behind the posterior nostril; 1–2 regular rows of conical teeth in both jaws, prevomer and vomer are slightly separated from each other; the origin of the dorsal fin above the middle of the pectoral fin; and the pectoral fin is rounded and not elongated. Pisodonophis sangjuensis is most similar to P. cancrivorus in morphology, but the two species differ in their teeth shape (conical in P. sangjuensis vs. granular in P. cancrivorus), and their numbers of vertebrae (143–153 vs. 153–164, respectively). Pisodonophis sangjuensis differs from P. boro in the origin of the dorsal fin (above the middle of the pectoral fin in P. sangjuensis vs. far behind the pectoral fin in P. boro), their numbers of vertebrae (143–153 vs. 170–177, respectively), and their teeth shape (conical in P. sangjuensis vs. granular in P. boro). Pisodonophis sangjuensis is also easily distinguishable morphologically from the remaining seven Pisodonophis spp. worldwide. Molecular analysis using mitochondrial DNA 12S rRNA sequences supported that P. sangjuensis is a new species because of the considerable genetic distance from what appears to be its most closely related species, P. cancrivorus (d=0.068).

scholarly journals Traccatichthys tuberculum, a new species of nemacheiline loach from Guangdong Province, South China (Pisces: Balitoridae)

Zootaxa ◽  
2012 ◽  
Vol 3586 (1) ◽  
pp. 304 ◽  
Author(s):  
CHUN-XIAN DU ◽  
E ZHANG ◽  
BOSCO PUI LOK CHAN
Keyword(s):  
New Species ◽  
South China ◽  
Guangdong Province ◽  
Color Pattern ◽  
Caudal Peduncle ◽  
Peduncle Length ◽  
Coastal River ◽  
Fin Length ◽  
A New Species ◽  
Preanal Length

Traccatichthys tuberculum, new species, is herein described from the Jian-Jiang, a coastal river in Guangdong Province,South China. Photo by Bosco P.L. Chan. This new species differs from all other Chinese congeners (i.e., T. pulcher and T.zispi) in interorbital width, caudal-peduncle length, and pectoral-fin length. It, together with T. zispi, lacks the colorpatterns of the dorsal and anal fins in T. pulcher, and differs from T. zispi in preanal length. Traccatichthys tuberculum,together with all other Chinese congeners, is distinct from the Vietnamese species, T. taeniatus, in the shape of the black bar on the caudal-fin base, and the color pattern of the anal fin.

A new species of Osteobrama (Teleostei: Cyprinidae) from the Mahanadi River, India with a note on the validity of O. dayi

Zootaxa ◽  
2020 ◽  
Vol 4722 (1) ◽  
pp. 68-76
Author(s):  
BUNGDON SHANGNINGAM ◽  
SHIBANANDA RATH ◽  
ASHA KIRAN TUDU ◽  
LAISHRAM KOSYGIN
Keyword(s):  
New Species ◽  
Valid Species ◽  
Pectoral Fin ◽  
Mahanadi River ◽  
Dorsal Fin ◽  
Fin Rays ◽  
The Status ◽  
A New Species ◽  
Pectoral Fin Rays

A new species of the genus Osteobrama is described from the Mahanadi River, Tikarpada, Angul District, Odisha state, India. Osteobrama tikarpadaensis, new species, differs from its congeners in having two pairs of minute barbels; iii–iv unbranched dorsal-fin rays with 25–33 serrae on the last unbranched ray; 15–16 branched pectoral-fin rays, and 25–27 branched anal-fin rays. The status of Osteobrama dayi is discussed and shown to be a valid species. A key to the species of the genus is provided. 

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