Gammarus roeselii is a species of freshwater amphipod native to Europe. See more

Gervais described G. roeselii in 1835 under today's correct name G. roeselii GERVAIS , 1835. Since he wrote the description in Latin and used the Latinized name of the baron, i.e. "ROESELIUS", the genitive form is roeselii. … See more

Gammarus roeselii adult males reach a length of up to 22 mm; females are smaller than males. The species is distinct from many other common amphipods due to the spines on its fifth through seventh pereiopods… See more

Gammarus roeselii originated in the Balkan area of Europe, and appears to have populated the Pannonian Basin as a glacial refuge before expanding into central and western Europe 10,000 years ago. It is now widesprea… See more