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Any one of numerous species of small, fresh-water, chætopod annelids of the tribe Naidina. They belong to the Oligochæta.

A tropical fruit. See Sapodilla. [Written also nisberry.]

Any species of marine gastropods, of the genera Nassa, Tritia, and other allied genera of the family Nassidæ; a dog whelk. See Illust. under Gastropoda. -- nas"soid, a.

Any one of numerous species of marine gastropods belonging to Natica, Lunatia, Neverita, and other allied genera (family Naticidæ.) They burrow beneath the sand, or mud, and drill other shells.

The only existing genus of tetrabranchiate cephalopods. About four species are found living in the tropical Pacific, but many other species are found fossil. The shell is spiral, symmetrical, and chambered, or divided into several cavities by simple curved partitions, which are traversed and connected together by a con…

An American annual weed (veronica peregrina), with small white flowers and a roundish pod.

A division of vermiform gastropod mollusks, without a shell, belonging to the Isopleura.

A genus, including numerous species, of marine chætopod annelids, having a well-formed head, with two pairs of eyes, antennæ, four pairs of tentacles, and a protrusile pharynx, armed with a pair of hooked jaws.

A genus of marine gastropods, mostly natives of warm climates.

An order of hexapod insects having two pairs of large, membranous, net-veined wings. The mouth organs are adapted for chewing. They feed upon other insects, and undergo a complete metamorphosis. The ant-lion, hellgamite, and lacewing fly are examples. Formerly, the name was given to a much more extensive group, includi…

aving a hard smooth shell, and a yellowish or bluish color. The seeds grow in the prickly pods of tropical, woody climbers of the genus Cæsalpinia. C. Bonduc has yellowish seeds; C.Bonducella, bluish gray. [Spelt also neckar nut, nickar nut.]

ertaining to, or baring, eggs or egg capsules; as, the nidament capsules of certain gastropods; nidamental glands. See Illust. of Dibranchiata.

A foul-smelling weed, the stinking goosefoot (Chenopodium Vulvaria).

See Heteropoda.

A suborder of Cephalopoda including Octopus, Argonauta, and allied genera, having eight arms around the head; -- called also Octopoda.

A genus of eight-armed cephalopods, including numerous species, some of them of large size. See Devilfish,

An annual plant (Abelmoschus, or Hibiscus, esculentus), whose green pods, abounding in nutritious mucilage, are much used for soups, stews, or pickles; gumbo. [Written also ocra and ochra.]

A genus of polished marine gastropod shells, chiefly tropical, and often beautifully colored.

A dish of stewed meat; an olio; an olla-podrida.

Malacopoda.