Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Gastromyzontidae
Etymology: Gastromyzon: Greek, gaster = stomach + Greek, myzo = to suckle (Ref. 45335); ocellatus: Specific name from the Latin ocellus, meaning eye, in allusion to the eye-like patterns on the lateral of the body.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: southern Sarawak, Malaysia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.5 cm SL male/unsexed; (Ref. 55025)
Morphology | Morphometrics
soft rays: 5;
Vertebrae: 30 - 31. Distinguished from its congeners in having the following unique combination of characters: body dark brown, dorsum with 7-8 cream bars, side with bars complete or interrupted to form an ocellus pattern, head dorsum dark brown with cream spots and blotches; caudal fin red when live; lack of secondary rostrum; lack of a postoral pouch; gill slit angular, subopercular groove present and continuous to pectoral fin origin; a rounded snout when viewed dorsally; presence of sublacrimal groove; abdomen without scales; 56-61 scales on lateral line; pelvic fin not overlapping anal fin origin, adpressed dorsal fin not overlapping anal fin origin (Ref. 55025).
Inhabits fast flowing rocky streams (Ref. 84801). Syntopic with Gastromyzon ctenocephalus (Ref. 55025).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tan, H.H. and P.K.L. Ng, 2004. Two new species of freshwater fish (Teleostei: Balitoridae, Osphronemidae) from southern Sarawak. p. 267-284. In H.S. Yong, F.S.P. Ng and E.E.L. Yen (eds.) Sarawak Bau Limestone Biodiversity. The Sarawak Museum Journal 59(80) (New Series); Special Issue No. 6. (Ref. 55025)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass 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=0.00447 (0.00180 - 0.01112), b=3.14 (2.92 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.4 ±0.1 se; based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .