Petroleuciscus smyrnaeus (Boulenger, 1896)
Izmir chub
photo by Güçlü, S.S.

Family:  Leuciscidae (Minnows), subfamily: Leuciscinae
Max. size:  10 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Europe and Asia: Lesbos Island in Greece and Aegean drainages of southwestern Turkey, from Izmir to Güllük.
Diagnosis:  Dorsal spines (total): 3-3; Dorsal soft rays (total): 7-8; Anal spines: 3-3; Anal soft rays: 8-10; Vertebrae: 34-36. The only species of the genus in Lesbos Islands and southwestern Turkey which can be differentiated from Petroleuciscus borysthenicus by having the following characters: dorsal fin with 7½ branched rays; anal fin usually with 8½ branched rays; iris whitish; lateral line with 32-35 scales; posterior margin of anal fin straight or slightly concave; free margin of each flank with black pigments (Ref. 59043).
Biology:  Inhabits slow-flowing to standing water (Ref. 59043).
IUCN Red List Status: Least Concern (LC); Date assessed: 22 January 2014 Ref. (130435)
Threat to humans:  harmless


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