Two new species of Garra (Cypriniformes: Cyprinidae) from the lower Yarlung Tsangpo River drainage in southeastern Tibet, China

Zootaxa ◽  
2018 ◽  
Vol 4532 (3) ◽  
pp. 367 ◽  
Author(s):  
ZHENG GONG ◽  
JÖRG FREYHOF ◽  
JIAN WANG ◽  
MENG LIU ◽  
FEI LIU ◽  
...  
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Lateral Surface ◽  
Species Group ◽  
River Drainage ◽  
Two New Species ◽  
Yarlung Tsangpo ◽  
Yarlung Tsangpo River ◽  
Southeastern Tibet ◽  
Pelvic Fin

Two new species of the fish genus Garra (Cypriniformes: Cyprinidae) are described from the lower Yarlung Tsangpo River drainage in southeastern Tibet, China. Garra motuoensis, a member of the proboscis species group, is primarily distinguished from the members of this group by having a prominent, quadrate, and slightly bilobed proboscis; 6–20 small to middle-sized unicuspid tubercles on the anterior region of the proboscis, some middle-sized unicuspid tubercles on the transverse lobe of the snout, and several small unicuspid tubercles on the lateral surface of snout; the anus situated slightly closer to the anal-fin origin than to the pelvic-fin origin (distance from anus to anal fin 36–46% of pelvic-anal distance); 36–37 lateral-line scales; and 12 circumpeduncular scales. Garra yajiangensis, a member of the proboscis species group, is primarily distinguished from the members of this group by having a prominent, quadrate, and slightly bilobed proboscis, covered with 2–7 middle-sized unicuspid tubercles, including two large-sized tubercles on anterior margin of each lobe; some small unicuspid tubercles on the transverse lobe and the lateral surface of snout; the anus situated substantially closer to the anal-fin origin than to the pelvic-fin origin (distance from anus to anal fin 19–24% of pelvic-anal distance); 34–36 lateral-line scales; and 12 circumpeduncular scales. The validities of these two new species were also corroborated by molecular phylogenetic analysis based on Cyt b gene sequences. 

Review of the Oxynoemacheilus tigris group with the description of two new species from the Euphrates drainage (Teleostei: Nemacheilidae)

Zootaxa ◽  
2019 ◽  
Vol 4612 (1) ◽  
pp. 29 ◽  
Author(s):  
JÖRG FREYHOF ◽  
CÜNEYT KAYA ◽  
DAVUT TURAN ◽  
MATTHIAS GEIGER
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Molecular Data ◽  
Species Group ◽  
Lake Van ◽  
Undescribed Species ◽  
River Drainage ◽  
Two New Species ◽  
Lake Van Basin ◽  
Endorheic Lake

The Oxynoemacheilus tigris species group is reviewed, resulting in the recognition of six species, of which two are described herein as new. Oxynoemacheilus tigris is known from the endorheic Qweik River and the Merziman River, which is a tributary of the western Euphrates. Oxynoemacheilus ercisianus is endemic to the endorheic Lake Van basin and O. hazarensis is endemic to Lake Hazar basin in the upper Tigris drainage. Oxynoemacheilus kaynaki is widespread in the Euphrates drainage. The two undescribed species occur in the Euphrates drainage. Oxynoemacheilus arsaniasus, new species, from the Murat River and the upper Karasu (Muş) River drainage, is distinguished from other species of the O. tigris group by having a bold, black, irregularly-shaped bar at the caudal-fin base, an incomplete lateral line and a scaleless body. Oxynoemacheilus muefiti, new species, from the upper Murat River drainage and a tributary to the Atatürk reservoir, is most similar to O. ercisianus, from which it is distinguished by a more slender body and a shallower dorsal adipose crest. According to our molecular data, the Qweik population of O. tigris is suspected to be introgressed by O. namiri from the Orontes drainage. Oxynoemacheilus erdali is identified as a synonym of O. bergianus as we were unable to find differences between the two species. 

Exostoma tibetana, a new glyptosternine catfish from the lower Yarlung Tsangpo River drainage in southeastern Tibet, China (Siluriformes: Sisoridae)

Zootaxa ◽  
2018 ◽  
Vol 4527 (3) ◽  
pp. 392 ◽  
Author(s):  
ZHENG GONG ◽  
PENGCHENG LIN ◽  
FEI LIU ◽  
HUANZHANG LIU
Keyword(s):  
New Species ◽  
Posterior Extremity ◽  
The Body ◽  
Body Depth ◽  
River Drainage ◽  
Fin Rays ◽  
Yarlung Tsangpo ◽  
Adipose Fin ◽  
Yarlung Tsangpo River ◽  
Southeastern Tibet

Exostoma tibetana, new species, is described from the lower Yarlung Tsangpo River drainage in southeastern Tibet, China. It is distinguished from congeners by having an adipose fin separate from the upper procurrent caudal-fin rays and incised at the posterior extremity of its base; the tip of the pelvic fin not reaching to the anus when adpressed; 10 branched pectoral-fin rays; and morphometric features associated with the body depth, adipose-fin base length, caudal-peduncle depth, snout length, and eye diameter. The validity of this new species was also supported by molecular phylogenetic analysis based on Cyt b gene sequences. 

Two new species of the scorpionfish genus Trachyscorpia (Sebastidae:  Sebastolobinae) from the southern Indo–West Pacific, with comments  on the distribution of T. eschmeyeri

Zootaxa ◽  
2007 ◽  
Vol 1466 (1) ◽  
pp. 19-34 ◽  
Author(s):  
HIROYUKI MOTOMURA ◽  
PETER R. LAST ◽  
GORDON K. YEARSLEY
Keyword(s):  
New Species ◽  
Indian Ocean ◽  
Lateral Surface ◽  
The Body ◽  
Morphometric Characters ◽  
West Pacific ◽  
Two New Species ◽  
Upper Jaw ◽  
Southwestern Indian Ocean ◽  
Pelvic Fin

Two new species of the scorpionfish genus Trachyscorpia are described on the basis of 20 and 7 specimens collected from Australasia at depths of 731–1020 m and the southwestern Indian Ocean at depths of 620–1080 m respectively. The two new species, classified into the subgenus Mesoscorpia, are distinguished from the only other member of the subgenus, T. (M.) eschmeyeri, by the following characters: the tympanic spines absent (vs. usually present in the latter), the upper-jaw lip well developed, covering the premaxillary tooth band laterally (vs. lip poorly developed, the premaxillary teeth exposed laterally), scales absent on the lateral surface of the maxilla (vs. scales present), and 4 blackish saddles on the body in preserved specimens (vs. no blackish saddles). Trachyscorpia (M.) carnomagula sp. nov. differs from T. (M.) longipedicula sp. nov. in having 57–63 scale rows in longitudinal series (vs. 50–53 in the latter). They are also distinguished by several morphometric characters, including lengths of pelvic-fin spine and soft ray, and first anal-fin spine. The subgenus Mesoscorpia is redefined. A key to the species of Trachyscorpia and comments on distribution of T. (M.) eschmeyeri are also provided.

A new species of the genus Garra (Teleostei: Cyprinidae) from the Barak River drainage, Manipur, India

Zootaxa ◽  
2018 ◽  
Vol 4374 (2) ◽  
pp. 263
Author(s):  
NARENGBAM RONI ◽  
WAIKHOM VISHWANATH
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Lateral Surface ◽  
Anterior Margin ◽  
River Drainage ◽  
Barak River ◽  
Transverse Scale ◽  
A New Species

Garra substrictorostris, a new labeonine species, is described from the Barak River drainage in Manipur, India. It is distinguished from its congeners by the combination of the following characters: a prominent unilobed antrorse proboscis, with 3–5 medium to large multicuspid tubercles on its anterior margin; 4–6 multicuspid tubercles on its anteroventral margin; a prominent transverse lobe with 14–20 multicuspid tubercles; the lateral surface of the snout slightly elevated, lobular with 7–11 small tubercles; 5½ transverse scale rows above the lateral line and 3½ or 4½ scale rows between lateral line and anal-fin origin. 

A new species of the genus Garra Hamilton (Teleostei: Cyprinidae) from Northeast India

Zootaxa ◽  
2019 ◽  
Vol 4619 (3) ◽  
pp. 545-554
Author(s):  
NARENGBAM RONI ◽  
YENGKHOM CHINGLEMBA ◽  
YUMNAM RAMESHORI ◽  
WAIKHOM VISHWANATH
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Lateral Surface ◽  
Anterior Margin ◽  
Lateral Lobe ◽  
Northeast India ◽  
Median Lobe ◽  
River Drainage ◽  
Barak River ◽  
A New Species

A new species of Garra with a rostral proboscis is described from the Barak River drainage in Manipur, India. Garra paratrilobata, new species, is distinguished from its congeners in having the combination of the following characters: a prominent trilobed proboscis, the median lobe with 5–7 uni- to tricuspid tubercles on its anterior margin and 4–6 minute tubercles on its anteroventral margin; lateral lobe of the proboscis with 3–4 minute tubercles; lateral surface of the snout lobular, with 6–9 tubercles; 33–34 lateral-line scales; and the rostral surface concave, creased and depressed. 

scholarly journals Cast netting new species: Integrative taxonomy of Distichodus notospilus (Characiformes: Distichodontidae) discovers new species and overlooked areas of endemism in Central Africa

Zootaxa ◽  
2021 ◽  
Vol 4952 (2) ◽  
pp. 291-313
Author(s):  
RAY C. SCHMIDT ◽  
ELISE C. KNOBLOCH ◽  
CHRISTIAN BARRIENTOS
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Central Africa ◽  
Integrative Taxonomy ◽  
Dark Spot ◽  
Caudal Fin ◽  
Widespread Species ◽  
River Drainage ◽  
Two New Species ◽  
Areas Of Endemism

Distichodus notospilus was described from the Ogooué River and is considered to occur throughout the Lower Guinea ichthyofaunal province and the western tributaries of the middle and lower Congo River. Recent expeditions in Equatorial Guinea collected D. notospilus specimens in the Mbini River drainage and the Mbia River; a small coastal river that is located between the Ntem and Mbini river drainages. Detailed morphological analyses and multilocus molecular analyses confirm that these two populations are distinct from one another. Topotypic populations of D. notospilus were included in the analyses and demonstrated that populations in the Mbini and Mbia rivers are distinct and these two new species are described herein. Distichodus microps sp. nov. is endemic to the Mbia River drainage and is distinguished from D. notospilus in having more scales along the lateral line (41, rarely 40 versus 37–39, rarely 40), a nearly inferior mouth versus subterminal in D. notospilus, a curved posterolateral margin of the opercle versus straight in D. notospilus, a smaller eye (56.7–80.4 versus 70.1–104.3 % of snout length), and a less prominent elongated spot at the base of the caudal fin. Distichodus mbiniensis sp. nov. is endemic to the upper Mbini River drainage and distinguished from D. notospilus in having more scales along the lateral line (41–42, rarely 40 versus 37–39, rarely 40), a much less prominent elongated dark spot at the base of the caudal fin, and a shorter dorsal fin (21.4–27.2 versus 22.7–34.2% standard length). Distichodus microps is distinguished from D. mbiniensis in having a shallower body (usually six scales from lateral line to the pelvic fin versus seven), fewer anal-fin rays (usually 12 total rays versus 13 or 14), a more inferior mouth, a deeper and longer caudal peduncle, a smaller eye, and differences in several features associated with the head. In addition to the two new species described this study also revealed potential undescribed diversity in the D. notospilus species complex in the Ntem River and Dja River (Congo R. basin) in Cameroon. The biogeography of these fishes in the rivers of Lower Guinea suggests that the Mbini River and smaller coastal rivers are overlooked areas of endemism. Studies of other reported widespread species will likely reveal additional diversity and further elucidate the processes promoting and maintaining freshwater diversity in Central Africa. 

Spirlins of the southern Black Sea basin, with the description of a new species (Teleostei: Leuciscidae)

Zootaxa ◽  
2020 ◽  
Vol 4763 (3) ◽  
pp. 419-428
Author(s):  
CÜNEYT KAYA
Keyword(s):  
New Species ◽  
Black Sea ◽  
Lateral Line ◽  
River Drainage ◽  
Snout Length ◽  
Fin Rays ◽  
Eye Diameter ◽  
A New Species ◽  
Pelvic Fin

Alburnoides turani, new species, from the Filyos River drainage is described and the distribution of the nine other Alburnoides species known from the southern Black Sea basin is revised. Alburnoides turani is distinguished by having a naked ventral keel, or the keel is covered with 1–3 scales between the posterior pelvic-fin base and the anus, an interorbital distance wider than the eye diameter and the snout length, 48–55 total lateral-line scales, 5–6 scale rows between the anal-fin origin and the lateral line, 13½–14½ branched anal-fin rays, and 41–42 total vertebrae. 

Two new species of Oxynoemacheilus from the Tigris drainage in Iraqi Kurdistan (Teleostei: Nemacheilidae)

Zootaxa ◽  
2017 ◽  
Vol 4238 (1) ◽  
pp. 73 ◽  
Author(s):  
JÖRG FREYHOF ◽  
YOUNIS SABIR ABDULLAH
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Pectoral Fin ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
River Drainage ◽  
Iraqi Kurdistan ◽  
Two New Species

Two new species of Oxynoemacheilus are described from the Sirvan River drainage in Iraqi Kurdistan. Oxynoemacheilus gyndes, new species, is distinguished by having a very short lateral line, reaching behind the pectoral-fin base, no scales except on the posteriormost part of the caudal peduncle, a slightly emarginate caudal fin and no suborbital groove in males. Oxynoemacheilus hanae, new species, is distinguished by having a midlateral row of elongated blotches, isolated patches of dark-brown spots or blotches on lower flank, a deeply emarginate caudal fin and a suborbital groove in males. 

Two new species of the conger eel genus Bathycongrus (Anguilliformes: Congridae) from Taiwan

Zootaxa ◽  
2018 ◽  
Vol 4454 (1) ◽  
pp. 107
Author(s):  
JIAN-FU HUANG ◽  
HSUAN-CHING HO ◽  
YUNG-HSU CHANG ◽  
DAVID G. SMITH ◽  
HONG-MING CHEN
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Species Group ◽  
Deep Waters ◽  
Two New Species ◽  
Conger Eel

Two new species of the congrid eel genus Bathycongrus are described from the deep waters of eastern Taiwan. Bathycongrus albimarginatus sp. nov., which belongs to the species group with two enlarged teeth on the vomer and more total vertebrae, is described from 16 specimens and can be distinguished by vertical fins with broad white margins, more pores on head and predorsal lateral line, total vertebrae 195–201. Bathycongrus brunneus sp. nov., which has no enlarged teeth on the vomer, is described from one specimen and can be distinguished by 12 subequal teeth on the vomer and 174+ total vertebrae.

scholarly journals Channa royi (Teleostei: Channidae): a new species of snakehead from Andaman Islands, India

2018 ◽  
Vol 65 (4) ◽  
Author(s):  
J. Praveenraj ◽  
J.D.M. Knight ◽  
R. Kiruba-Sankar ◽  
Beni Halalludin ◽  
J.J.A. Raymond ◽  
...  
Keyword(s):  
New Species ◽  
Lateral Line ◽  
Species Group ◽  
The Body ◽  
Andaman Islands ◽  
Lower Jaw ◽  
Fin Rays ◽  
Green Background ◽  
A New Species ◽  
Pelvic Fin

A new species of snakehead fish Channa royi sp. nov., has been described based on 21 specimens collected from the South, Middle and North Andaman Islands, India. It is distinguished from all its congeners by a greenish-grey dorsum, pale brown to black pectoral fin with 2-3 inconspicuous semicircular bands, a series of 7-9 obliquely-arranged, saddle-like, dark olive to grey oblique streaks on green background on upper half of the body, 42-45 pored lateral-line scales, 12-13 branched caudal rays, 6-7 pre-dorsal scales, 43 vertebrae, two rows of teeth on the lower jaw, an outer row of numerous minute slender, pointed teeth and single inner row of large uniform sized teeth without any large canine like teeth on the anterior fourth of the lower jaw. Phylogenetically C. royi sp. nov. is closely related to C. harcourtbutleri, with a genetic distance (K2-P) of 2.4-2.8%, but morphologically differs in having greater inter-orbital width, fewer pelvic-fin rays (5 vs. 5-7, mode 6); fewer caudal-fin rays (ii- i, 10-12, i-ii vs. ii, 15, ii); more pre-dorsal scales (6-7 vs. 4) and fewer mid row lateral-line scales (9-13 vs. 15-16). Though Channa royi sp. nov. is a part of C. gachua species-group, it differs from the topotypic C. gachua from Bengal with higher pair-wise sequence distance of 19.5-20.9%.

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