Classification / Names
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Cypriniformes (Carps) >
Gastromyzontidae (Hillstream loaches)
Etymology: Gastromyzon: Greek, gaster = stomach + Greek, myzo = to suckle (Ref. 45335); russulus: Derived from the Latin russus, meaning red, in reference to the red fins in life.
Environment: milieu / climate zone / profondeur / distribution range
Écologie
; eau douce démersal. Tropical
Asia: Kayan and Mahakam River basins in Kalimantan Timur, Indonesia.
Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Max length : 6.4 cm SL mâle / non sexé; (Ref. 57871)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 9; Rayons mous anaux: 5; Vertèbres: 31 - 32. Can be distinguished from its congeners by possessing the following unique combination of characters: body plain dark brown or black in adults, body brown with numerous thin cream bars and blotches in juveniles; head dorsum dark brown with cream reticulate pattern; all fins reddish when alive; absence of secondary rostrum; absence of a postoral pouch; gill slit angular, subopercular groove present and continuous to pectoral fin origin; a rounded and elongate snout when viewed dorsally; presence of sublacrymal groove; abdomen without scales; lateral line with 64-71 scales; pelvic fin just touching anal fin origin, adpressed dorsal fin not overlapping level of anal fin origin (Ref. 57871).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-1)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Réf.
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).
Niveau trophique (Réf.
69278): 2.1 ±0.1 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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