"Testacea" is a word in ENGLISH

A limb, or locomotive or prehensile organ, of an invertebrate animal.

One of the artificial group of invertebrates of various kinds, which live parasitically upon the exterior of other animals; an …

The hardened parts of the external integument of an animal, including hair, feathers, nails, horns, scales, etc.,as well as the …

A thick muscular stomach found in many invertebrate animals.

One the above-mentioned filaments, consisting, in invertebrate animals, of a long, tubular part which is free and flexible, and a …

An individual which has the attributes of both male and female, or which unites in itself the two sexes; an …

Having the ganglia of the nervous system unsymmetrically arranged; -- said of certain invertebrate animals.

A tough, horny animal substance entering into the composition of the skeleton of sponges, and other invertebrates; -- called also …

A red-colored respiratory pigment found associated with hemoglobin in the muscle tissue of a large number of animals, both vertebrate …

The entire covering of an invertebrate animal, as echinoderm or coelenterate; the integument.

The membrane surrounding the mouth of an invertebrate animal.

The more or less firm or hardened framework of an invertebrate animal.

Any small calcareous or siliceous body found in the tissues of various invertebrate animals, especially in sponges and in most …

A more or less elongated process or organ, simple or branched, proceeding from the head or cephalic region of invertebrate …

The external hard or firm covering of many invertebrate animals.

A grand division of the animal kingdom, intermediate, in some respects, between the invertebrates and vertebrates, and by some writers …

Any one of numerous species of invertebrate animals which more or less resemble plants in appearance, or mode of growth, …