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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.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande. Tropical
Asia: Northeastern Borneo in the Kalabakan and Sebuku River basins.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 5.1 cm SL hane/ej könsbestämd; (Ref. 57871)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 8; Mjukstrålar i analfenan: 5; Ryggkotor: 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.
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
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)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00646 (0.00283 - 0.01475), b=3.11 (2.91 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
2.3 ±0.1 se; based on size and trophs of closest relatives |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |