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Teleostei (teleosts) > Cypriniformes (Carps) > Gastromyzontidae (Hillstream loaches)
Etymology: Gastromyzon: Greek, gaster = stomach + Greek, myzo = to suckle (Ref. 45335); stellatus: From the Latin adjective stellatus, meaning starry, in reference to the numerous yellow spots on the black body.

Environment: milieu / climate zone / depth range / distribution range Ecology

Freshwater; demersal. Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Asia: Sarawak, Sadong and Lupar River basins in Sarawak, Malaysia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 5.2 cm SL male/unsexed; (Ref. 57871)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 8; Anal soft rays: 4; Vertebrae: 31 - 32. Can be distinguished from its congeners by having the following unique combination of characters: a dark brown body with numerous yellow fine spots and blotches, head dark brown with numerous yellow spots; sublacrymal groove visible from side; secondary rostrum absent; post-oral pouch absent; subopercular groove absent; gill slit vertical; a truncate snout when viewed dorsally; abdomen without scales; lateral line scales 66-69; pelvic fin not overlapping level of anal fin origin, adpressed dorsal fin not overlapping level of anal fin origin (Ref. 57871).

Inhabits fast flowing rocky streams (Ref. 84801).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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. 130435: Version 2024-1)

Near Threatened (NT) (B1ab(iii)); Date assessed: 11 January 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00617 (0.00268 - 0.01421), b=3.11 (2.91 - 3.31), 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

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Gastromyzon stellatus Tan, 2006