What is "oniscus"

Oniscus \Oniscus\ prop. n. The type genus of the Oniscidae, consisting of woodlice that cannot roll into a ball.

Syn: genus Oniscus.

Oniscus is a genus of woodlice. It comprises five species, three of which are confined to northwestern Iberia ( Oniscus ancarensis, O. galicianus and O. lusitanicus), one to the Pyrenees ( Oniscus simonii), and one of which, O. asellus, is widespread across Europe and has been introduced to the Americas .