A division of bivalve shells, including the marine mussels, in which the two adductor muscles are very unequal.
A class of Mollusca including all those that have bivalve shells, as the clams, oysters, mussels, etc.
Bivalve shells, named Conchacea by Lamarck, are those which consist of two principal portions united to and folded upon each other by means of a hinge.
A genus of bivalve shells, composed of the Arca Noae, and several other species, separated from the genus Arca on account of their shells being attached by means of a byssus passing through an hiatus in the ventral margins.
A term applied to bivalve shells, when a line drawn down perpendicularly from the apex would divide the shell into two equal parts.
A genus of bivalve shells, distinguished from those of the genus Venus, by having a rounded, denticular form, and a deep, angular sinus in the palleal impression.
Before passing on to the univalve molluscs, we must refer briefly to a group of animals that are enclosed in bivalve shells, and which were once included with the Mollusca, but are now made to form quite a distinct group by themselves.
Bivalve shells should, as a rule, be closed while the ligament is still supple, and kept closed until it is quite dry, when the valves will remain together just in the position they assume when pulled together by the living animal.
The length of bivalve shells is measured from their anterior to their posterior ends, while the height indicates the greatest diameter between the umbones and the ventral margin.
Lunule^: An impressed area just below the beaks of bivalve shells.
The outer surface of bivalve shells admits of infinite variety of sculpturing and ornamentation, ranging from a perfectly smooth to a heavily ribbed, nodose, spinous, or deeply decussated surface.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "bivalve shells" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
