Gastropoda: alternatives and connections

That division of the Mollusca which includes the bivalve shells, like the clams and oysters; -- so called because they have no evident…

A genus of land snails, often large, common in the warm parts of America and Africa.

A kind of seaweed; pl. the class of cellular cryptogamic plants which includes the black, red, and green seaweeds, as kelp, dulse, sea…

A genus of land snails having an elongated spiral shell, often of large size. The species are numerous and abundant in tropical Americ…

A group of individuals ranked together as possessing common characteristics; as, the different classes of society; the educated class;…

In the manner of classes; according to a regular order of classes or sets.

The act of forming into a class or classes; a distibution into groups, as classes, orders, families, etc., according to some common re…

That class of Mollusca which includes the bivalve shells; the Lamellibranchiata. See Mollusca.

The science of Mollusca, and of the shells which they form; malacology.

Lately produced, gathered, or prepared for market; not stale; not dried or preserved; not wilted, faded, or tainted; in good condition…

Of, pertaining to, or living in, water not salt; as, fresh-water geological deposits; a fresh-water fish; fresh-water mussels.

The division of Mollusca which includes the land snails and slugs.

A genus of marine shells; the ear-shells. See Abalone.

A genus of marine univalve shells; the harp shells; -- so called from the form of the shells, and their ornamental ribs.

A genus of land snails, including a large number of species.

Any species or marine hydroids, of the genus Hydractinia and allied genera. These hydroids form, by their rootstalks, a firm, chitinou…

A class of Mollusca including all those that have bivalve shells, as the clams, oysters, mussels, etc.

Of or pertaining to the sea; having to do with the ocean, or with navigation or naval affairs; nautical; as, marine productions or bod…