Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Psilorhynchidae
Etymology: Psilorhynchus: Greek, psilos = hairless + Greek, rhyngchos = snout (Ref. 45335); tenura: The specific name is derived from the Latin tenuis (thin, slender) and Greek oura (tail), in reference to the slender peduncle region.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
Asia: Korkanhalla stream in Karnataka, India.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.2 cm SL male/unsexed; (Ref. 78734)
Morphology | Morphometrics
soft rays: 8. Diagnosed by having the following characters: 35-37 lateral line scales (33-35 up to hypural base with 2-3 scales on caudal fin); 5-6 simple and 10-12 branched rays on the pectoral fin; 17 rays on the caudal fin (9+8); 15 body circumferential scales; body depth 16.8-19.8% SL; caudal peduncle slender and short (depth 5.6-7.1% SL and length 13.7-16.2% SL); ventral region free from scales, with 3-4 scale rows between pelvic fin insertion and pectoral fin insertion along the edge of the body; eye situated on the upper part of head, barely visible from ventral aspect; 7 dorsal spots, 3 predorsal and 4 postdorsal; 8 spots on the body placed in the space between the dorsal spots along the lateral line; presence of a spot at the insertion region of paired fins; and the membrane between simple ray and few anterior branched rays black (Ref. 78734).
Occurs in streams, preferring cobbled substrate. Found attached to cobbles with their expanded pectoral fins and free swimming in shallow waters with medium flow (Ref. 78734).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Arunachalam, M. and M. Muralidharam, 2008. Descriptions of a new species of the genus Psilorhynchus (Teleostei: Psilorhynchidae) from a Western Ghat stream in Southern India. Raffles Bull. Of Zool. 53(2):405-414. (Ref. 78734)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00417 (0.00181 - 0.00961), 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 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .