Psilorhynchus kaladanensis Lalramliana, Lalnuntluanga & Lalronunga, 2015

Family:  Psilorhynchidae (Mountain carps)
Max. size:  5.22 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Asia: Tuisi River, a tributary of Kaladan River in Mizoram, India.
Diagnosis:  Dorsal soft rays (total): 12-12; Anal soft rays: 8-8; Vertebrae: 32-33. Psilorhynchus kaladanensis is a member of the P. balitora species group and can be distinguished by having a greatly reduced anteriormost branchiostegal ray and a post-epiphysial fontanelle that is smaller than the preepiphysial fontanelle. It differs from all other species of the P. balitora species group in having the following combination of characters: caudal fin with small but distinct dark brown triangular spot at mid-base; slightly elongated dark mark near base of lower lobe; indistinct V-shaped vertical bar across center, dark brown oblique bar across fin anterior to center; 5-6 unbranched pectoral-fin rays; 10+9 principal caudal-fin rays; 30-32 scales on lateral line; 3 branchiostegal rays; 32-33 total vertebrae; no scales on mid-ventral region between pectoral fins; no larger scales at pelvic-fin origin (Ref. 102605).
Biology:  Inhabits moderate to fast flowing water with sparse vegetation and a substrate of pebbles, sand, gravel and small boulders (Ref. 102605).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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