bivalve apparatus; panels of 147 in azimuth and 122 vertical angle; mercury rotation.
The mother-of-pearl which lines some shells, both univalve and bivalve.
The pea crabs are all small, and they are parasites, living within the shells of bivalve molluscs.
The instance referred to is that presented by bivalve shell-fish.
Like the whelk, he loves the bivalve mollusk, but does not bore for it.
bivalve shells are said to gape when the margins do not meet all round.
bivalve, bī′valv, n. an animal having a shell in two valves or parts, like the oyster: a seed-vessel of like kind.
Also to the angular bendings in the margins of some bivalve shells.
Dreisenssia, a genus of bivalve mollusc allied to the mussels.
I noticed also several univalve and bivalve shells of various sizes.
Any of various mollusks of the class Bivalvia, having a shell consisting of two halves hinged together. Clams, oysters, scallops, and mussels are bivalves. The class Bivalvia is also called Pelecypoda, and was formerly called Lamellibranchia. Compare univalve.