Kryptopterus vitreolus, Ng, Heok Hee & Kottelat, Maurice, 2013

Ng, Heok Hee & Kottelat, Maurice, 2013, A name for the glass catfish (Teleostei: Siluridae) revisited, Zootaxa 3640 (2), pp. 299-300 : 299

Kryptopterus vitreolus , new species

Holotype: UMMZ 249801, 45.2 mm SL; Thailand: Trat Province, Amphoe Khao Saming; K. Udomritthiruj, 27 November 2011. Paratypes: all specimens listed as paratypes of K. vitreolus by Ng & Kottelat (2013) are paratypes of K. vitreolus described herein.

Diagnosis: Kryptopterus vitreolus can be distinguished from all other congeners (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 fewer anal-fin rays (48–55 vs. 64–85). Kryptopterus vitreolus can be distinguished 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.

See Ng & Kottelat (2013) for a complete description and further information and discussion.