Redescription of the striped catfish Mystus carcio (Hamilton) (Siluriformes: Bagridae)

Zootaxa ◽  
2010 ◽  
Vol 2475 (1) ◽  
pp. 48 ◽  
Author(s):  
A. DARSHAN ◽  
N. ANGANTHOIBI ◽  
W. VISHWANATH
Keyword(s):  
Standard Length ◽  
Northeast India ◽  
Junior Synonym ◽  
Pectoral Girdle ◽  
Adult Size ◽  
Pectoral Fin ◽  
Dorsal Fin ◽  
Striped Catfish ◽  
Adipose Fin ◽  
Pelvic Fin

Pimelodus carcio, originally described in 1822 by Francis Hamilton, has long been treated as a junior synonym of either Mystus tengara or M. vittatus. In this paper we revalidate and redescribe the species and diagnose it from other striped Mystus by the following combination of characters: small adult size, maturing at 44.0 mm standard length; adipose-fin base shorter than or equal to dorsal-fin base; pelvic fin reaching anal-fin origin; pectoral girdle with coracoid shield exposed ventro-laterally below pectoral fin; eyes rounded and large, dorsally orientated on head; vomerine tooth-patch interrupted at midline. The species is distributed in the Ganga-Brahmaputra drainage of northeast India and Bangladesh.

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).  

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 Two new species of the catfish genus Trichomycterus (Siluriformes: Trichomycteridae) from the rio Ribeira de Iguape Basin, southeastern Brazil

2005 ◽  
Vol 3 (4) ◽  
pp. 465-472 ◽  
Author(s):  
Wolmar Benjamin Wosiacki ◽  
Osvaldo Takeshi Oyakawa
Keyword(s):  
New Species ◽  
Standard Length ◽  
Head Length ◽  
Southeastern Brazil ◽  
Pectoral Girdle ◽  
Base Length ◽  
Pectoral Fin ◽  
Caudal Fin ◽  
Fin Ray ◽  
Pelvic Fin

Two new species of the trichomycterid catfish genus Trichomycterus from the rio Ribeira de Iguape basin, southeastern Brazil, are described. Trichomycterus tupinamba differs from the other species of the Trichomycterinae in having the first pectoral-fin ray not prolonged as a filament, the caudal fin is truncate with attenuated edges, two paired supraorbital pores s6, eye oriented dorsally, a subterminal mouth, anal and urogenital openings mid-way between the pelvic-fin margin and anal-fin origin, a dark spot at the base of the nasal barbel, a longitudinal row of dark spots along the midline of the flank from the opercle to the caudal-fin base, a pectoral-girdle width of 13.1-17.7 % of standard length, and a caudal-peduncle depth of 8.7-10.3 % of standard length. Trichomycterus jacupiranga differs from all other species of the Trichomycterinae in having the first pectoral-fin ray prolonged as a short filament, one fused supraorbital pore s6, a pelvic fin that covers the anal and urogenital openings, anal and urogenital openings that are closer to the anal-fin origin than to the pelvic-fin base, a truncated caudal fin with attenuated edges, and the following morphometric characteristics: head length 20.7-22.4 % standard length, preanal length 57.1-70.9 % standard length, pectoral girdle width 17.4-20.6 % standard length, trunk length 33.6-37.5 % standard length, pectoral-fin length 16.8-22.7 % standard length, dorsal-fin base length 12.8-14.1 % standard length, anal-fin base length 8.4-10.8 % standard length, head width 90.6-104.6 % head length, snout length 40.0-46.9 % head length, mouth width 27.0-37.3 % head length, and eye diameter 10.4-16.5 % head length. Distribution, ecological data and diagnostic features are presented for both new species.

scholarly journals Resurrection of the genus Homalopteroides (Teleostei: Balitoridae) with a redescription of H. modestus (Vinciguerra 1890)

Zootaxa ◽  
2012 ◽  
Vol 3586 (1) ◽  
pp. 329 ◽  
Author(s):  
ZACHARY S. RANDALL ◽  
LAWRENCE M. PAGE
Keyword(s):  
Lateral Line ◽  
Head Length ◽  
Pectoral Fin ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Interorbital Width ◽  
Fin Rays ◽  
Orbital Rim ◽  
Pectoral Fin Rays ◽  
Pelvic Fin

The genus Homalopteroides Fowler 1905 is resurrected and distinguished from the genus Homaloptera van Hasselt 1823based on a combination of characters including a unique mouth morphology, dorsal-fin origin over pelvic fin,≤60 lateral-line scales, and≤30 predorsal scales. Species included in Homalopteroides are H. wassinkii (Bleeker 1853), H. modestus(Vinciguerra 1890), H. rupicola (Prashad & Mukerji 1929), H. smithi (Hora 1932), H. stephensoni (Hora 1932), H. weberi(Hora 1932), H. tweediei (Herre 1940), H. indochinensis (Silas 1953), H. nebulosus (Alfred 1969), H. yuwonoi (Kottelat1998), and possibly H. manipurensis (Arunkumar 1999). Homalopteroides modestus (Vinciguerra 1890) is a poorlyknown species that was originally described from the Meekalan and Meetan rivers of southern Myanmar. It occurs in theSalween, Mae Khlong, and Tenasserim basins, and can be distinguished from all other species of Homalopteroides by thecombination of caudal-fin pattern (black proximal and distal bars, median blotch), 15 pectoral-fin rays, pectoral-fin lengthgreater than head length, 5½–6½ scales above and 5–6 scales below the lateral line (to the pelvic fin), 39–44 total lateral-line pores, no axillary pelvic-fin lobe, pelvic fin not reaching anus, orbital length less than interorbital width in adult, and maxillary barbel reaching to or slightly past the anterior orbital rim.

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.

Stolephorus babarani, a new species of anchovy (Teleostei: Clupeiformes: Engraulidae) from Panay Island, central Philippines

Zootaxa ◽  
2020 ◽  
Vol 4718 (4) ◽  
pp. 509-520 ◽  
Author(s):  
HARUTAKA HATA ◽  
SÉBASTIEN LAVOUÉ ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Standard Length ◽  
Posterior Margin ◽  
Mitochondrial Coi ◽  
Dorsal Fin ◽  
Lower Jaw ◽  
Upper Jaw ◽  
Gill Raker ◽  
A New Species ◽  
Pelvic Fin

The new anchovy Stolephorus babarani n. sp. is described on the basis of 26 specimens collected from Panay Island, central Philippines. The new species closely resembles Stolephorus bataviensis Hardenberg 1933 and Stolephorus baweanensis Hardenberg 1933, all these species having a long upper jaw (posterior tip extending beyond posterior margin of preopercle), and numerous dusky spots on the suborbital area (in adults), snout and lower jaw tip. However, the new species differs from S. bataviensis by usually having the posterior tip of the depressed pelvic fin not reaching to vertical through the dorsal-fin origin (vs. extending beyond vertical through dorsal-fin origin), a shorter head (23.9–25.5% of standard length vs. 25.3–28.0%), and a greater distance between the dorsal-fin origin and pectoral-fin insertion (D–P1; 133.9–151.8% of head length vs. 109.9–136.3%). Stolephorus babarani is distinguished from S. baweanensis by having a shorter snout (3.6–3.9% of standard length vs. 3.8–4.6%). Moreover, the new species can be distinguished from S. bataviensis and S. baweanensis by higher gill raker counts on the first and second gill arches (16–18 + 21–23 and 10–13 + 18–21, respectively, vs. 14–17 + 19–22 and 9–12 + 17–20 in S. bataviensis and 14–17 + 19–22 and 9–12 + 17–21 in S. baweanensis). Stolephorus babarani is separated by 5.3% and 10.7% mean p-distances in the mitochondrial COI from S. baweanensis and S. bataviensis, respectively. 

scholarly journals A new record of a rare labrid, Suezichthys notatus (Actinopterygii: Labridae), from Taiwan, with comparison to related species from Taiwan

2021 ◽  
Vol 51 (4) ◽  
pp. 393-401
Author(s):  
Chi-Ngai Tang ◽  
Hong-Ming Chen ◽  
Husan-Ching Ho
Keyword(s):  
Lateral Line ◽  
Deep Water ◽  
Standard Length ◽  
Related Species ◽  
New Record ◽  
Head Length ◽  
Body Depth ◽  
Dorsal Fin ◽  
Southwestern Taiwan ◽  
Pelvic Fin

Three specimens of a rare labrid, Suezichthys notatus (Kamohara, 1958) were recently collected from local markets, which were captured from deep-water off northern and southwestern Taiwan, and represent a new record for Taiwan. Suezichthys notatus can be distinguished from its congeners by a combination of characters: scale rows above lateral line 2½; low scaly sheath present at base of dorsal and anal fins; dorsal-fin element IX, 11; anal-fin elements III, 10; lateral line scales 25‒26, each with simple, unbranched laterosensory canal tube; cheek scale rows behind and below eye 2 and 2‒3 respectively; a group of prominent dark blotches extending from the interorbital region dorsoposteriorly; body depth at dorsal-fin origin 3.7‒3.9 in standard length; short pelvic fin without filamentous extension, 2.2‒2.5 in head length. Suezichthys resembles the labrid genus Pseudolabrus, comparison of Taiwanese species of Suezichthys with those of Pseudolabrus are given.

scholarly journals Biological properties of European bitterling Rhodeus amarus (Bloch, 1782) in Dinsiz Stream, Turkey

2020 ◽  
Vol 7 (2) ◽  
pp. 60
Author(s):  
Semra Benzer ◽  
Ali Gül
Keyword(s):  
Standard Length ◽  
Body Height ◽  
Fork Length ◽  
Biological Properties ◽  
Base Length ◽  
Pectoral Fin ◽  
Morphometric Characters ◽  
Dorsal Fin ◽  
Total Length ◽  
Fin Length

The aim of this article was to some morphometric characteristics of Rhodeus amarus from Dinsiz Stream. A morphological analysis of 21 morphometric characters were done. These characteristics  total length (TL); fork length (FL); standard length (SL); predorsal length; dorsal fin base length; dorsal fin length; head length; pretorbital length; eye diameter; postorbital length; interorbital distance; body height; preanal distance; anal fin base length; anal fin length; pectoral fin base length; pectoral fin length; ventral fin base length; ventral fin length; caudal peduncle depth and weight (W). The samples were measured weight to the nearest 0.01 g and total, fork and standard length to the nearest 0.01 mm. The total length (TL) and weight (W min-max) of the fish were 4.2- 7.1 cm and 1.699- 7.444 g, respectively.Keywords: Rhodeus amarus; European bitterling; morphometric properties; Dinsiz Stream Turkey

Sphyraena stellata, a new barracuda from the Indo-Pacific, with redescriptions of S. helleri Jenkins, 1901 and S. novaehollandiae Günther, 1860 (Perciformes: Sphyraenidae)

Zootaxa ◽  
2020 ◽  
Vol 4772 (3) ◽  
pp. 545-566 ◽  
Author(s):  
SATOSHI MORISHITA ◽  
HIROYUKI MOTOMURA
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Standard Length ◽  
Sensory Canal ◽  
Dorsal Fin ◽  
Fin Ray ◽  
Lacrimal Bone ◽  
Upper Jaw ◽  
Gill Raker ◽  
Pelvic Fin

A new barracuda, Sphyraena stellata, is described on the basis of 41 specimens [98.0–587.0 mm standard length (SL)] collected from the Indo-Pacific. The new species can be distinguished from all congeners in having the following combination of characters: one gill raker on first gill arch; pelvic-fin insertion located slightly before vertical through first dorsal-fin origin; pored lateral-line scales 134–141 (modally 137), total lateral-line scales 139–148 (146); scales above and below lateral line 15–17 (15) and 14–16 (15), respectively; snout comparatively short, its length 13.6–15.8 (mean 14.4) % SL; upper jaw short, its posterior tip not reaching to below anterior nostril, its length 10.0–12.2 (10.8) % SL; eye small, orbit diameter and depth 4.3–7.0 (4.9) and 3.9–5.6 (4.5) % SL, respectively; anal-fin base shortish, its length 6.9–8.1 (7.5) % SL; last dorsal- and anal-fin ray lengths 4.0–5.6 (4.7) and 3.6–5.6 (4.6) % SL, respectively; anus not close to anal-fin origin, anterior and posterior margins of former to anal-fin origin 7.5–11.9 (9.9) and 5.2–8.3 (6.8) % of head length, respectively; head sensory canal pores on suborbital area simple or slightly branched, their lowermost parts not close to margin of lacrimal bone, large smooth area lacking canal pores on mid-margin of lacrimal bone; two yellow stripes on lateral surface of body (remaining as black stripes in preserved specimens); and caudal fin gray. In addition, S. helleri Jenkins, 1901 and S. novaehollandiae Günther, 1860, both being closely related to the new species, are redescribed on the basis of 4 (243.3–545.8 mm SL) and 15 (270.8–598.0 mm SL) specimens, including holotypes, respectively, with new diagnostic characters proposed for both species. 

scholarly journals Lophiobrycon weitzmani, a new genus and species of glandulocaudine fish (Characiformes: Characidae) from the rio Grande drainage, upper rio Paraná system, southeastern Brazil

2003 ◽  
Vol 1 (1) ◽  
pp. 11-19 ◽  
Author(s):  
Ricardo M. C. Castro ◽  
Alexandre C. Ribeiro ◽  
Ricardo C. Benine ◽  
Alex L. A. Melo
Keyword(s):  
New Species ◽  
Standard Length ◽  
New Genus ◽  
Rio Grande ◽  
Sister Group ◽  
Southeastern Brazil ◽  
Sister Group Relationship ◽  
New Genus And Species ◽  
Dorsal Fin ◽  
Adipose Fin

A new genus and species of glandulocaudine, Lophiobrycon weitzmani, is described based on specimens collected in headwater tributary streams of the rio Grande, upper rio Paraná system, State of Minas Gerais, southeastern Brazil. The inclusion of the new species in the phylogeny of the subfamily Glandulocaudinae proposed by Weitzman & Menezes (1998), reveals a sister group relationship between the new genus and the monophyletic group composed of Glandulocauda and Mimagoniates that currently form the tribe Glandulocaudini. The new species can be readily distinguished from all other species of the tribe by the autapomorphic presence in adult male individuals (with more than 23.9 mm standard length) of an adipose-fin whose base extends for almost the entire distance between the posterior terminus of the base of the dorsal fin and the base of the upper lobe of the caudal fin and averages approximately 25% standard length, along with the presence of globular expansions formed by the lepidotrichia and hypertrophied soft tissue in the middle portions of the first and second pectoral-fin rays. The diagnosis of the tribe Glandulocaudini is modified to accommodate the new genus.

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