ONAD→quagga mussel

quagga mussel

EnglishOxford New American Dictionary

quagga mussel /ˈkwäɡə ˌməsəl, ˈkwɑɡə ˌməsəl

▸ noun a small freshwater bivalve mussel similar to the zebra mussel but with less prominent markings, native to Dnieper river system in Ukraine and an invasive species elsewhere.

Dreissena bugensis, family Dreissenidae.

– ORIGIN 1990s : from quagga (in allusion to the striped appearance of the mussel's shell).