Triplophysa arnoldii Prokofiev, 2006
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Family:  Nemacheilidae (Brook loaches)
Max. size:  7 cm SL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: Western Mongolia.
Diagnosis:  Dorsal spines (total): 3-3; Dorsal soft rays (total): 7-7; Anal spines: 2-3; Anal soft rays: 5-6; Vertebrae: 39-42. Distinguished from its congeners in having skin densely covered with wart-like epidermal tubercles developed in both sexes at all the ontogenetic stages; 4 pectoral bony radials of distinct shape; anterior and posterior nares closely spaced; occipital canal interrupted, with 2+2 pores; caudal peduncle laterally compressed and shorter than the head; well-developed free air-bladder portion in the abdominal cavity; intestine long and spirally coiled; anterior fontanelle in the skull; 3 basibranchials and 2 pairs of infrapharyngobranchials in the branchial apparatus; epural considerably shortened, the pads of the breeding tubercles are weakly-developed in the preorbital region of the mature males (Ref. 57977).
Biology:  A moderately small species, found mature at 68-70 mm SL (Ref. 57977).
IUCN Red List Status: Not Evaluated (N.E.) Ref. (124695)
Threat to humans:  harmless
Country info:   

Entered by: Capuli, Estelita Emily - 09.03.07
Modified by: Bailly, Nicolas - 31.10.12

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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