naiades

n.

水中的仙女，女游泳家( naiad的名词复数 )；

The Naiades of Missouri. VI.
Missouri naiades: a guide to the mussels of Missouri
Synopsis of the naiades, or pearly fresh-water mussels
Scientific Books: A Monograph of the Naiades of Pennsylvania
A descriptive catalogue of the Naiades, or pearly freshwater mussels
On the nomenclature of certain North American Naiades
South American Naiades; a contribution to the knowledge of the freshwater mussels of South America
Correlation of Shape and Station in Fresh-Water Mussels (Naiades)
Systematics of European naiades (Bivalvia: Margaritiferidae and Unionidae): a review and some new aspects
Taxonomy and zoogeographic relationships of the South American naiades (Pelecypoda: Unionacea and Mutelacea)