Kryptopterus Vitreolus (Kryptopterus vitreolus) is a ray-finned fish of the family Siluridae. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 6.5 cm. With a trophic level of 3.6, it is a mid-level predator. It is assessed as Least Concern on the IUCN Red List.
Dorsal soft rays (total): 32; Anal soft rays: 48 - 55; Vertebrae: 44 - 47. This species differs from all species of Kryptopterus, except K. minor and K. piperatus, in having a transparent (vs. translucent or opaque) body in life, and from members of the K. cryptopterus, K. limpok, and K. schilbeides groups in having 48-55 anal-fin rays (vs. 64-85). It is diagnosed from members of the K. bicirrhis species group (K. bicirrhis, K. lais, K. macrocephalus, K. minor, K. palembangensis and K. piperatus) in having the following combination of characters: snout length 29-35% HL, eye diameter 28-34% HL, body depth at anus 16-20% SL, depth of caudal peduncle 4-7% SL, maxillary barbels reaching beyond base of first anal-fin ray, dorsal profile with pronounced nuchal concavity, 14-18 rakers on first gill arch, and 48-55 anal-fin rays .: elongated.
Behavioural data for Kryptopterus Vitreolus is currently being reviewed.
Freshwater; demersal. Tropical; 13°N - 6°N central Thailand.
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