from the GNU version of the Collaborative International Dictionary of English
- n.pl. A tribe of bivalve mollusks, characterized by the closed state of the mantle which envelops the body. The ship borer (Teredo navalis) is an example.
from The Century Dictionary and Cyclopedia
- In Cuvier's classification, the fifth family of his Acephala testacea, including the clams, razor-shells, pholades, ship-worms, and some other lamellibranch or bivalve mollusks which have the mantle open at the anterior extremity, or near the middle only, for the passage of the foot.
Sorry, no etymologies found.