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Psilorhynchus gracilis Rainboth, 1983
Life   Vertebrata   Fish   Psilorhynchidae   Psilorhynchus

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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Psilorhynchus nudithoracicus Tilak & Husain , 1980

Rainbow minnow Upload your photos  and  videos
Pictures | Google image Image of Psilorhynchus nudithoracicus (Rainbow minnow) Psilorhynchus nudithoracicus
Picture by Bakalial, B.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Cypriniformes (Carps) > Psilorhynchidae (Mountain carps)
Etymology: Psilorhynchus: Greek, psilos = hairless + Greek, rhyngchos = snout (Ref. 45335 ) .

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal.   Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Ganges River drainage in Bangladesh, India and Nepal; Brahmaputra River drainage in Bangladesh and India; and Meghna and Sungu River drainages in Bangladesh and India.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 8.4 cm SL male/unsexed; (Ref. 102605 )

Short description Morphology | Morphometrics

Dorsal soft rays (total): 12-13; Anal soft rays : 8; Vertebrae : 34. Differs from other species of Psilorhynchus by the presence of large and flap-like skin folds at the lateral corner of the mouth, which reach further posteriorly than the lower jaw cushion and are covered in large 'head of cauliflower' papillae (vs. skin folds not reaching past posteriormost part of lower jaw cushion, non-papilliated or with small dome-like papillae). Can be further diagnosed from other members of P. nudithoracicus species group by the possession of the following characters: two dorsal saddles positioned at dorsal-fin origin; L+2 row present, composed of 5-10 obvious dark brown blotches; mostly 17+17 vertebrae. Can be further separated from P. melissa by its dorsal fin with irregular dark brown or black margins (vs. dorsal fin marked with a dark brown or black band along distal edge); from P. robustus by having dorsal saddles posterior to the dorsal fin poorly developed (vs. dorsal saddles posterior to the dorsal fin well-developed), and by having the anteriormost lateral blotch equal in size or smaller than more posterior blotches (vs. anteriormost lateral blotch larger than more posterior blotches), and from P. tenure by having 9-10+9 principal caudal-fin rays (vs. 9+8); caudal peduncle length 9-13% SL (vs. 14-16% SL); presence (vs. absence) of a short mandibular canal along the anguloarticular; and presence (vs. absence) of a series of indistinct horizontal rows formed by small dark brown spots on the scales above and below the lateral line scale row (Ref. 93866 ).

Biology     Glossary (e.g. epibenthic)

Occurs over small pebbles in shallow running waters where the bottom is mainly sand (Ref. 4832 ). Also found in a slow moving stream with a sandy bed (Ref. 93866 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Conway, K.W., D.E. Dittmer, L.E. Jezisek and H.H. Ng , 2013. On Psilorhynchus sucatio and P. nudithoracicus , with the description of a new species of Psilorhynchus from northeastern India (Ostariophysi: Psilorhynchidae). Zootaxa 3686(2):201-243. (Ref. 93866 )

IUCN Red List Status (Ref. 119314 )

    Not Evaluated  

CITES (Ref. 115941 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans


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Updated: 2019-07-21 04:24:10 gmt
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