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Teleostei (teleosts) > Cypriniformes (Carps) > Psilorhynchidae (Mountain carps)
Etymology: Psilorhynchus: Greek, psilos = hairless + Greek, rhyngchos = snout (Ref. 45335); amplicephalus: Derived from ampli (wide, broad), and cephalic (head), in reference to its relatively broad head.

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

Freshwater; benthopelagic. Tropical

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Asia: Balishwar river in Assam, India.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.7 cm SL male/unsexed; (Ref. 75068)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 11; Anal soft rays: 7. Body spindle-shaped and subcylindrical, and head anteriorly compressed. Other diagnostic characters include scaleless abdomen, horizontally placed pectoral and pelvic fins, 35-36 scales along the lateral line series, dark brownish spots in the predorsal region and along the sides of the body, relatively bigger head, deeper body and smaller mouth; hump-like shape in the predorsal region of bigger specimens (Ref. 75068).

Inhabits river with more water current and sandy bottom. Prefers sandy substrate with horizontally placed pectoral fin suited to withstand the water flow (Ref. 75068).

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

Main reference Upload your references | References | Coordinator | Collaborators

Arunachalam, M., M. Muralidharan and P. Sivakumar, 2007. Psilorhynchus amplicephalus, a new species from Balishwar River of Assam, India. Curr. Sci. 92(10):1352-1354. (Ref. 75068)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Data deficient (DD) ; Date assessed: 23 February 2010

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00417 (0.00183 - 0.00952), b=3.16 (2.95 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.0 ±0.2 se; based on size and trophs of closest relatives

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Psilorhynchus amplicephalus Arunachalam, Muralidharan & Sivakumar, 2007