Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Cypriniformes
(Carps) > Gastromyzontidae
Etymology: Gastromyzon: Greek, gaster = stomach + Greek, myzo = to suckle (Ref. 45335); auronigrus: The specific name is derived from the Latin aurum (gold) and nigra (black), in allusion to the distinctive gold and black life coloration.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; demersal. Tropical
Asia: Sungai Kinarom draining into Marudu Bay in Sabah, Malaysia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL male/unsexed; (Ref. 57871)
Morphology | Morphometrics
soft rays: 4;
Vertebrae: 30. Can be distinguished from its congeners by possessing the following unique combination of characters: body black, dorsum with 7 thin gold bars, side with gold bars complete or interrupted to form black blotches; head dorsum black with fine gold reticulate pattern when alive, when preserved the gold turns cream; absence of secondary rostrum; absence of a postoral pouch; gill slit vertical, subopercular groove absent; a rounded snout when viewed dorsally; presence of sublacrymal groove; abdomen without scales; lateral line with 64 scales; pelvic fin not overlapping anal fin origin, adpressed dorsal fin not overlapping level of anal fin origin (Ref. 57871).
Recorded from fast flowing rocky streams (Ref. 84801).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tan, H.H., 2006. The Borneo suckers. Revision of the torrent loaches of Borneo (Balitoridae): Gastromyzon, Neogastromyzon). Kota Kinabalu, Sabah, Malaysia : Natural History Publications (Borneo) in association with Raffles Museum of Biodiversity Research. vii, 245 p. : ill. (some col.), maps ; 26 cm. (Ref. 57871)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
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=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 2.2 ±0.1 se; Based on size and trophs of closest relatives
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .