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); gokkyi: Named for Gokkyi, a small village above the type locality, to honor the hospitality and help extended to the second author during his collection trip in November 2009. A noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Tropical
Asia: Pani Chaung, Ayeyarwaddy River drainage in Myanmar.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.6 cm SL male/unsexed; (Ref. 85329)
Morphology | Morphometrics
soft rays: 7 - 8;
Vertebrae: 34. Distinguished from all its congeners by the possession of a deep notch situated at the level of the ethmoid region, visible as a square step-like division between the snout and the head in lateral view and a deep groove in dorsal view. Can be further diagnosed from other congeners by the following combination of characters: snout length 51-57% HL; ventral surface between paired fins with a broad triangular scale-less patch; dorsal fin with branched rays 9-10; pectoral fin with 5-6 unbranched rays; caudal fin with 10+9 rays; scales on lateral line 32-34; lateral sides of body marked with 6 indistinct round to squarish dark brown blotches, arranged in a longitudinal row; dorsal saddles deep, extending 3-4 scale rows downwards from dorsal surface, in contact with the round to squarish dark brown blotches, arranged in a longitudinal row on flank; caudal fin with an irregular pigmentation pattern, most prominent along lower lobe (Ref. 85329).
Found in a swift-flowing stream with dense bank and overhanging vegetation, and a substrate of sand, gravel and small boulders (Ref. 85329).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Conway, K.W. and R. Britz, 2010. Three new species of Psilorhynchus from the Ayeyarwaddy River drainage, Myanmar (Teleostei: Psilorhynchidae). Zootaxa 2616:31-47. (Ref. 85329)
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) .