Dnieper chub - Wikipedia en.wikipedia.org

Petroleuciscus... www.fishbase.se

Petroleuciscus... tagmyfish.net

Petroleuciscus Bogutskaya,... www.gbif.org

File:Petroleuciscus... en.m.wikipedia.org

Leuciscinae - Wikispecies species.wikimedia.org

Leuciscidae – Tag my Fish www.tagmyfish.net

Black Sea Chub :: Red Data... e-ecodb.bas.bg

Petroleuciscus Bogutskaya,... www.gbif.org

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Ñàéò ëþáèòåëåé àêòèâíîãî... ukraine-fish.ucoz.ua

Petroleuciscus ninae – Tag... tagmyfish.net

Syntype of Leuciscus... www.researchgate.net

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Radiograph of... www.researchgate.net

Atlantor , a new generic... www.biotaxa.org

Ñàéò ëþáèòåëåé àêòèâíîãî... ukraine-fish.ucoz.ua

Taxonomic review of the... zse.pensoft.net