Cobitis bilineata Canestrini, 1865
Cobitis bilineata
photo by Hippocampus-Bildarchiv

Family:  Cobitidae (Loaches), subfamily: Cobitinae
Max. size:  6.5 cm SL (male/unsexed); 10 cm SL (female); max. reported age: 4 years
Environment:  demersal
Distribution:  Europe: Northern Adriatic basin, from Po to Soca drainages (Slovenia, Italy, Switzerland), Durance system (Rhône drainage, France) and Zrmanja drainage (Croatia). Introduced to most of Italy (including Sardinia), Lake Bañolas (northeastern) Spain) and upper Rhine drainage (Switzerland) (Ref. 59043).
Diagnosis:  Two black spots at caudal base. Pigmentation (Gambetta's longitudinal zone of pigmentation): presence of a narrow line of minute spots, usually ending below or in front of dorsal origin on zone Z3 in males. In mature males, zones Z2 and Z4 often continuous dark stripes. One lamina circularis (Ref. 59043).
Biology:  Found in lakes, rivers, brooks and irrigation channels with still or moderately flowing water on sand, gravel or mud bottom, often with vegetation (Ref. 59043). Oviparous, with distinct pairing during breeding (Ref. 205). Females mature at 2 years of age (Ref. 59043).
IUCN Red List Status: Least Concern (LC); Date assessed: 05 March 2010 Ref. (119314)
Threat to humans:  harmless
Country info:   
 

Entered by: Froese, Rainer - 30.06.98
Modified by: Torres, Armi G. - 18.06.10

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