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Cypriniformes (Carps) >
Gastromyzontidae (Hillstream loaches)
Etymology: Gastromyzon: Greek, gaster = stomach + Greek, myzo = to suckle (Ref. 45335); umbrus: From the Latin adjective umbra, meaning shade or shadow, in allusion to the dusky body coloration; also to the shadow cast on the throat area by the chin (the basins where this species occurs is at the throat region) of the Hog's head of Borneo island.
Environment: milieu / climate zone / rango de profundidad / distribution range
Ecología
; agua dulce demersal. Tropical
Asia: Northeastern Borneo in the Kalabakan and Sebuku River basins.
Tamaño / Peso / Age
Madurez: Lm ? range ? - ? cm
Max length : 5.1 cm SL macho / no sexado; (Ref. 57871)
Short description
Claves de identificación | Morfología | Morfometría
Radios blandos dorsales (total) : 8; Radios blandos anales: 5; Vértebra: 29 - 30. Can be distinguished from other species of the genus by possessing the following unique combination of characters: gill slit angular; subopercular groove present and continuous to pectoral fin origin; body dark brown; head dorsum dark brown; sublacrymal groove present; a rounded snout when viewed dorsally; secondary rostrum absent; post-oral pouch absent; abdomen without scales; lateral line scales 50-52; pelvic fin overlapping anal fin origin, adpressed dorsal fin overlapping level of anal fin origin (Ref. 57871).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
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 2025-1)
Threat to humans
Harmless
Human uses
Herramientas
Special reports
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Fuentes de Internet
Estimates based on models
Phylogenetic diversity index (Referencia
82804): PD
50 = 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).
Nivel trófico (Referencia
69278): 2.3 ±0.1 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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