Chondrostoma oxyrhynchum Kessler, 1877
Terek nase
Terskii podust,  Tera undermouth,  Terek nase,  терский,  терский подуст

Family:  Leuciscidae (Minnows), subfamily: Leuciscinae
Max. size:  46 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Eurasia: West Caspian basin from Kuma to Samur drainages.
Diagnosis:  Diagnosed from congeners in Black and Caspian Sea basins by the following characters: strongly arched mouth; dorsal fin usually with 8½ branched rays; anal fin with 9-10½ branched rays; scales on lateral line 56-73; eye small, diameter 48-52% of interorbital distance; and body cylindrical, width at dorsal origin 51-69% of depth (Ref. 59043).
Biology:  Inhabits piedmont and mountain rivers with strong current and rock to gravel bottom. Feeds predominantly on detritus and also on periphytic algae and benthic invertebrates, especially during first year of live. Spawns over hard bottom (Ref. 59043).
IUCN Red List Status: Least Concern (LC); Date assessed: 01 January 2008 Ref. (130435)
Threat to humans:  harmless
Country info:  Found in the Kuma, Terek (with Sunzha), Sulak, Rubas-chai and Samur rivers (Ref. 26334). EurRus.


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