Scardinius dergle Heckel & Kner, 1858

Family:  Leuciscidae (Minnows), subfamily: Leuciscinae
Max. size:  15 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Europe: Karstic streams in Livanjsko polje, Lakes Busko and Mandečko near Livno, Sarena lakes at Knin, Krka and Cetina basins.
Diagnosis:  Distinguished from its congeners in Balkan Peninsula by the combination of the following characters: 40-43 scales along lateral line; anal fin with 10½ branched rays; 10-13 gill rakers; dorsal head profile straight, snout pointing forward, tip at or slightly below level of middle eye; back not humped behind nape; eye not close to dorsal head profile when viewed laterally; articulation of lower jaw below or in front anterior margin of eye; lower head profile with a conspicuous angle at articulation of lower jaw; head length 28-32% SL; body depth 28-38% SL; caudal peduncle depth 10-11% SL; and all fins grey in adults larger than 6 cm SL (Ref. 59043).
Biology:  Inhabits slow-flowing and still waters and lakes (Ref. 59043).
IUCN Red List Status: Near Threatened (NT); Date assessed: 01 January 2008 Ref. (126983)
Threat to humans:  harmless

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