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Cypriniformes (Carps) >
Gastromyzontidae (Hillstream loaches)
Etymology: Gastromyzon: Greek, gaster = stomach + Greek, myzo = to suckle (Ref. 45335); psiloetron: Derived from the Greek psilos (naked or bare) and etron (belly), in reference to the scaleless belly with scaled pelvic fin area.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
; sötvatten bottenlevande. Tropical
Asia: Kayan and Mahakam River basins in Kalimantan Timur, and Kapuas River basin in Kalimantan Barat, Indonesia.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 8.5 cm SL hane/ej könsbestämd; (Ref. 57871)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 8 - 9; Mjukstrålar i analfenan: 5; Ryggkotor: 31 - 33. Can be distinguished from other species of the genus by possessing the following unique combination of characters: large specimens: a plain brown, grey or black body when preserved, dark brown or black in life, head dorsum plain brown; sub-adult or juveniles: black or dark brown body with up to 9 cream bars, side with complete or interrupted bars forming blotches, head dark brown with thin cream reticulate pattern; absence of secondary rostrum; absence of a post-oral pouch; absence of subopercular groove; gill slit lunate; presence of sublacrymal groove; a rounded snout when viewed dorsally; abdomen partially covered with fine scales only between the pelvic fin base; lateral line scales 59-60; pelvic fin not overlapping anal fin origin, adpressed dorsal fin not 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) |
2.0 ±0.1 se; based on size and trophs of closest relatives |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |