A no dont a (a no dont a)

[NL., River-mu el ( A no dont a fragilis ), North Carolina. valves, of the family Unionida, in which the hinge-teeth are rudimentary or null. The species are very numerous, and are among those called fresh-water 227 A name of the Cobaia aperea, the guinea-pig or domestic cavy: originally, with F. Cuvier, a generic name of the cavies, and a synonym of Cavia.