Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Balitoridae
Etymology: Gastromyzon: Greek, gaster = stomach + Greek, myzo = to suckle (Ref. 45335); venustus: From the Latin adjective venustus, meaning charming, in reference to the distinctive life coloration.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: known only from Sungai Belalong, Temburong River basin in Brunei Darussalam.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.9 cm SL male/unsexed; (Ref. 56228)
Morphology | Morphometrics
soft rays: 5;
Vertebrae: 27 - 29. Distinguished from its congeners in possessing the following unique combination of characters: body plain brown, head dorsum plain brown; dorsal, caudal and anal fins red in life; absence of secondary rostrum; absence of postoral pouch; gill slit angular, subopercular groove present and continuous with pectoral-fin origin; snout broadly round when viewed dorsally; presence of sublacrymal groove; absence of scales on abdomen; 58-63 scales in lateral line; pelvic fin just reaching level of anal fin origin, adpressed dorsal fin not overlapping level of anal fin origin (Ref. 56228).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tan, H.H. and Z.H. Sulaiman, 2006. Three new species of Gastromyzon (Teleostei: Balitoridae) from the Temburong River basin, Brunei Darussalam, Borneo. Zootaxa 1117:1-19. (Ref. 56228)
IUCN Red List Status (Ref. 119314)
CITES (Ref. 115941)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00236 - 0.01338), b=3.08 (2.87 - 3.29), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.3 ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .