Parakysis hystriculus, a new species of catfish (Siluriformes: Akysidae) from Sumatra

Zootaxa ◽  
2009 ◽  
Vol 1977 (1) ◽  
pp. 39-48
Author(s):  
HEOK HEE NG
Keyword(s):  
New Species ◽  
Dorsal View ◽  
Caudal Fin ◽  
Lower Lip ◽  
Posterior Branch ◽  
Anterior Branch ◽  
Fin Rays ◽  
Left And Right ◽  
A New Species ◽  
Pelvic Fin

Parakysis hystriculus, new species, is described from the Lalang River drainage in southern Sumatra. It can be distinguished from congeners in having a combination of branched pelvic-fin rays with anterior branch always shorter than posterior branch, lateral edges of head evenly sloping in dorsal view, anteriormost pair of accessory inner mandibular barbels longer than distance separating bases of left and right barbel, outer mandibular barbel with one accessory barbel, mandibular laterosensory pore between bases of inner and outer mandibular barbels present, margin of lower lip with medial concavity, anal fin rounded, caudal fin with narrow lobes having evenly-tapering posteromedial margins and 10 branched rays without secondary branches.

scholarly journals A new species of Pimelodus La Cépède, 1803 (Siluriformes: Pimelodidae) from rio Ribeira de Iguape basin, Brazil

2011 ◽  
Vol 9 (1) ◽  
pp. 127-134 ◽  
Author(s):  
Frank Raynner V Ribeiro ◽  
Carlos Alberto S. de Lucena ◽  
Osvaldo T Oyakawa
Keyword(s):  
New Species ◽  
Dorsal Surface ◽  
Branchial Arch ◽  
The Other ◽  
Gill Rakers ◽  
Caudal Fin ◽  
Fin Rays ◽  
A New Species ◽  
Pelvic Fin

Pimelodus multicratifer, a new species, is described from the rio Ribeira de Iguape basin. The new species differs from the other Pimelodus species by the following features: 26 to 30 gill rakers on the first branchial arch; a combination of three to six rows of dark spots regularly or irregularly scattered on the flanks and several small dark spots irregularly scattered on the dorsal surface of head, supraoccipital process, and sometimes on the dorsal and caudal fins; striated lips; maxillary barbels reaching between posterior tip of the pelvic-fin rays and posterior tip of the middle caudal-fin rays.

Description ofSantelmoa elviraesp. nov. (Teleostei: Zoarcidae) from the Southern Ocean

2011 ◽  
Vol 91 (6) ◽  
pp. 1231-1235 ◽  
Author(s):  
Jesús Matallanas
Keyword(s):  
New Species ◽  
Southern Ocean ◽  
Lateral Line ◽  
Anterior Portion ◽  
Lower Lip ◽  
Bellingshausen Sea ◽  
Fin Rays ◽  
Lateral Branches ◽  
A New Species ◽  
Pelvic Fin

Santelmoais diagnosed by the following characters: anterior portion of frontals fused; scapular foramen open; anterior ceratohyal–posterior ceratohyal (=epihyal) articulation interdigitating; cranium narrowed; supratemporal commissure and occipital pores absent; intercalar reaching the prootic; ascending rami of the parasphenoid wing high; palatal arch well developed; posterior hyomandibular ramus short; post-temporal ventral ramus well developed; six branchiostegal rays; vertebrae asymmetrical; pelvic fin rays ensheathed; scales, lateral line, pyloric caeca, palatine and vomerine teeth present. A new species ofSantelmoa, Santelmoa elviraesp. nov., is described on the basis of four specimens collected from the Bellingshausen Sea, Southern Ocean, at a depth of 1837 m. The new species can be distinguished fromSantelmoa carmenae, the type species of the genus and the sole knownSantelmoaspecies, by the following characters: mouth inferior; vertical folds on posterior end of the upper lip and on the lower lip lobe; oral valve nearly reaching the anterior edge of vomer; two posterior nasal pores; lateral line double with ventral and medio-lateral branches; single row of palatine teeth; dorsal fin rays 108–111; anal fin rays 93–94; pectoral fin rays 18–19 and vertebrae asymmetrical, 26–27 + 90–93 = 116–119.

Description of a new species of the fish genus Acanthoplesiops Regan (Teleostei: Plesiopidae: Acanthoclininae) from Tonga

Zootaxa ◽  
2004 ◽  
Vol 432 (1) ◽  
pp. 1 ◽  
Author(s):  
RANDALL D. MOOI ◽  
ANTHONY C. GILL
Keyword(s):  
New Species ◽  
Dorsal Spine ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Lower Lip ◽  
Dorsal Fin ◽  
Anterior Dorsal ◽  
Fin Rays ◽  
Pale Spot ◽  
A New Species

Acanthoplesiops naka sp. n. is described from the 9.9 mm SL holotype collected at Ofolanga Island of the Ha apai Group of Tonga. Its dorsal-fin spine count of XVIII is unique in the genus. The following combination of characters also distinguishes it from congeners: first two dorsal-fin pterygiophores in the 3 rd interneural space (anterior dorsal-fin formula ?/?/I+I/I/I/I/I//I/I/I); 3 dentary pores; 2 intertemporal pores; head and body generally brownish with darker pigment spots (from shrunken melanophores), excepting a paler stripe from the anterior half of the symphyseal flap on the lower lip to the origin of the dorsal fin (continuing on to the first dorsal spine), a pale spot on the pectoralfin base, and a pale caudal peduncle continuous with pale bases of last 3 segmented dorsaland anal-fin rays; regular ctenoid scales; no membranous attachment of last dorsalor anal-fin rays to caudal fin. The new species might be the sister taxon to A. psilogaster as they share the putative derived character of two dorsal-fin pterygiophores in the 3 rd interneural space.

Kottelatlimia hipporhynchos, a new species of loach from southern Borneo (Teleostei: Cobitidae)

Zootaxa ◽  
2008 ◽  
Vol 1967 (1) ◽  
pp. 63-72 ◽  
Author(s):  
MAURICE KOTTELAT ◽  
HEOK HUI TAN
Keyword(s):  
New Species ◽  
Sexual Dimorphism ◽  
Zoological Nomenclature ◽  
International Code ◽  
Median Lobe ◽  
Pectoral Fin ◽  
Caudal Fin ◽  
Lower Lip ◽  
Fin Rays ◽  
A New Species

Kottelatlimia hipporhynchos, new species, is described from the Sampit, Kahayan and Kapuas drainages, southern Borneo. It is distinguished from its congeners by the extreme development of the papillae on all mouth parts (lips, barbels, lobes), including very long papillae along the anterior edge of the main digitation of the median lobe of the lower lip; a longer snout; more vertebrae; and the upper 3–4 principal caudal-fin rays adjacent along proximal 1/4–1/3. Sexual dimorphism of the pectoral fin of Acantopsis and Neoeucirrhichthys is briefly discussed. The identity and nomenclatural status of Cobitis barbatuloides and Cobitichthys are discussed; they apparently belong to the genus Lepidocephalichthys, which is given precedence under article 23.9.2 of the International Code of Zoological Nomenclature.

scholarly journals Knodus shinahota (Characiformes: Characidae) a new species from the río Shinahota, río Chapare basin (Mamoré system), Bolivia

2007 ◽  
Vol 5 (1) ◽  
pp. 31-36 ◽  
Author(s):  
Katiane M. Ferreira ◽  
Fernando M. Carvajal
Keyword(s):  
New Species ◽  
Lateral Line ◽  
The Other ◽  
Caudal Fin ◽  
Dorsal Fin ◽  
Fin Rays ◽  
A New Species ◽  
Pelvic Fin

Knodus shinahota, new species, is described from río Shinahota, a tributary of the upper rio Mamoré basin, Província de Tiraque, Cochabamba State, Bolivia. The new species can be distinguished from all congeners except K. chapadae and K. geryi by having six rows of scales between the lateral line and the dorsal-fin origin (vs 4 or 5 rows of scales in the other species). Knodus shinahota differs from K. chapadae by possessing more rows of scales between the lateral line and the pelvic-fin origin (5 vs 3½ or 4, respectively) and more lateral line scales (38-41 vs 36-38, respectively). It differs from K. geryi by possessing more rows of scales between the lateral-line and the pelvic-fin origin (5 vs 4, respectively); fewer branched anal-fin rays (17-20 vs 15-17, respectively), and by lacking the two symmetric, large, dark, blotches on the basal portions of the caudal-fin lobes that characterize K. geryi.

scholarly journals Hyphessobrycon natagaima (Characiformes: Characidae) a new species from Colombia, with a key to the Magdalena Basin Hyphessobrycon species

Caldasia ◽  
2015 ◽  
Vol 37 (1) ◽  
pp. 221 ◽  
Author(s):  
Carlos A. García-Alzate ◽  
Donald C. Taphorn ◽  
Cesar Roman-Valencia ◽  
Francisco A. Villa-Navarro
Keyword(s):  
New Species ◽  
River Basin ◽  
Lateral Line ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Pectoral Fins ◽  
Fin Rays ◽  
Magdalena River ◽  
A New Species ◽  
Pelvic Fin

<p>A new species, Hyphessobrycon natagaima, is described from the upper Magdalena River Basin in Colombia. It differs from all other species of Hyphessobrycon with a dark lateral stripe inhabiting the Magdalena River Basin: H. poecilioides, H. proteus and H. ocasoensis, by having eight to twelve pored lateral-line scales (vs. 14-26); four scales between the lateral line and the pelvic-fin insertions (vs. five or six); one tooth on the maxilla (vs. zero in H. poecilioides, and two to five in H. proteus; except H. ocasoensis, with one), a dark, interrupted, lateral stripe that is not in contact with the caudal peduncle spot (vs. absence of caudal spot in H. poecilioides, lateral stripe continued that is in contact with the caudal peduncle spot in H. ocasoensis). It has a rhomboid shaped caudal-peduncle spot that continues on to middle caudal-fin rays (vs. absence of caudal peduncle spot in H. poecilioides and caudal peduncle spot round and not continued on to middle caudal-fin rays in H. ocasoensis); and presence of hooks on all fins in mature males (vs. males with hooks on anal, pelvic and pectoral fins). Hyphessobrycon natagaima differs from H. ocasoensis, in addition to the above characters, by having four scale rows between the lateral line and the anal-fin origin (vs. six); three or four scale rows between the lateral line and the pelvic-fin insertions (vs. six); ten or eleven predorsal scales (vs. nine); i,9,i dorsal-fin rays (vs. ii,8,i); 18-20 branched anal-fin rays (vs. 21-22) and eleven branched pectoral-fin rays (vs. twelve). A key for the identification of Hyphessobrycon species present in the Magdalena River Basin is provided.</p>

scholarly journals New species of Cyphocharax (Characiformes: Curimatidae) from the upper rio Negro, Amazon basin

2014 ◽  
Vol 12 (2) ◽  
pp. 327-332 ◽  
Author(s):  
Bruno F. Melo ◽  
Richard P. Vari
Keyword(s):  
New Species ◽  
Amazon Basin ◽  
Caudal Peduncle ◽  
Caudal Fin ◽  
Rio Negro ◽  
Fin Rays ◽  
Dark Pigmentation ◽  
Northern Brazil ◽  
Adipose Fin ◽  
A New Species

A new species of Cyphocharax, Curimatidae, apparently endemic to the blackwater upper rio Negro of the Amazon basin in northern Brazil, is described.The new species is readily distinguished from its congeners by the presence of a distinctly longitudinally elongate, posteriorly vertically expanding patch of dark pigmentation along the midlateral surface of the caudal peduncle, with the patch extending from the base of the middle caudal-fin rays anteriorly past the vertical through the posterior terminus of the adipose fin. The new species additionally differs from all congeners in details of body and fin pigmentation and meristic and morphometric ratios. Evidence for the assignment of the species to Cyphocharax and the occurrence of other species of the Curimatidae apparently endemic to the upper rio Negro catchment is discussed.

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 A new miniature species of Priocharax (Characiformes: Characidae) from the upper rio Ipixuna, Purus drainage, Brazil

2021 ◽  
Vol 19 (2) ◽  
Author(s):  
George Mendes Taliaferro Mattox ◽  
Camila da Silva de Souza ◽  
Mônica Toledo-Piza ◽  
Claudio Oliveira
Keyword(s):  
New Species ◽  
Lower Number ◽  
Valid Species ◽  
Molecular Evidence ◽  
Evidence Based ◽  
Fin Rays ◽  
Coi Sequences ◽  
Amazonas State ◽  
A New Species ◽  
Pelvic Fin

Abstract A new species of miniature fish of the characid genus Priocharax is described from a small lake near the rio Ipixuna, rio Purus drainage, Amazonas State, Brazil. It is distinguished from all congeners except P. pygmaeus by the lower number of teeth on the maxilla and dentary. It differs from P. pygmaeus by the presence of two postcleithra and 22–27 branched anal-fin rays (vs absence and 19–22). The new species is further distinguished from other species of Priocharax by a combination of characters involving the number of pelvic-fin rays and branched anal-fin rays, the number of postcleithra, the shape of postcleithrum 3, and the absence of the claustrum. Molecular evidence based on COI sequences of all valid species of Priocharax also corroborates the validity of this new species.

Garra hormuzensis, a new species from the upper Kol River drainage in the Persian Gulf basin (Teleostei: Cyprinidae)

Zootaxa ◽  
2021 ◽  
Vol 5052 (3) ◽  
pp. 380-394
Author(s):  
MAZAHER ZAMANI-FARADONBE ◽  
E. ZHANG ◽  
YAZDAN KEIVANY
Keyword(s):  
New Species ◽  
Persian Gulf ◽  
Caudal Fin ◽  
River Drainage ◽  
Dorsal Fin ◽  
Mtdna Coi ◽  
Fin Rays ◽  
The Persian Gulf ◽  
A New Species

Garra hormuzensis, new species, is described from the Kol River drainage. It is distinguished from its congeners in the Iranian part of the Persian Gulf basin by having 7½ branched dorsal-fin rays, usually 9+8 branched caudal-fin rays, the breast, belly and back in front of the dorsal-fin origin covered by scales, and a free lateral and posterior margins of the gular disc. It is further characterised by having a minimum K2P distance of 1.16% to G. mondica in the mtDNA COI barcode region.  

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