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Tentaculum :: Tentaculum (n.) A tentacle.

Lucernaria :: Lucernaria (n.) A genus of acalephs, having a bell-shaped body with eight groups of short tentacles around the margin. It attaches itself by a sucker at the base of the pedicel..

Polyactinia :: Polyactinia (n. pl.) An old name for those Anthozoa which, like the actinias, have numerous simple tentacles..

Stylommatophorous :: Stylommatophora (n. pl.) A division of Pulmonata in which the eyes are situated at the tips of the tentacles. It includes the common land snails and slugs. See Illust. under Snail.

Tentaculated :: Tentaculated (a.) Having tentacles, or organs like tentacles; tentacled..

Ctenostomata :: Ctenostomata (n. pl.) A suborder of Bryozoa, usually having a circle of bristles below the tentacles..

Ambulacrum :: Ambulacrum (n.) One of the radical zones of echinoderms, along which run the principal nerves, blood vessels, and water tubes. These zones usually bear rows of locomotive suckers or tentacles, which protrude from regular pores. In star fishes they occupy the grooves along the under side of the rays..

Actinotrocha :: Actinotrocha (n. pl.) A peculiar larval form of Phoronis, a genus of marine worms, having a circle of ciliated tentacles..

Phylactolaemata :: Phylactolaemata (n. pl.) An order of fresh-water Bryozoa in which the tentacles are arranged on a horseshoe-shaped lophophore, and the mouth is covered by an epistome. Called also Lophopoda, and hippocrepians..

Sea Orange :: Sea orange () A large American holothurian (Lophothuria Fabricii) having a bright orange convex body covered with finely granulated scales. Its expanded tentacles are bright red.

Tentacle :: Tentacle (n.) A more or less elongated process or organ, simple or branched, proceeding from the head or cephalic region of invertebrate animals, being either an organ of sense, prehension, or motion..

Entoprocta :: Entoprocta (n. pl.) A group of Bryozoa in which the anus is within the circle of tentacles. See Pedicellina.

Bryozoum :: Bryozoum (n.) An individual zooid of a bryozoan coralline, of which there may be two or more kinds in a single colony. The zooecia usually have a wreath of tentacles around the mouth, and a well developed stomach and intestinal canal; but these parts are lacking in the other zooids (Avicularia, Ooecia, etc.)..

Spadix :: Spadix (n.) A special organ of the nautilus, due to a modification of the posterior tentacles..

Spirant :: Spiralozooid (n.) One of the special defensive zooids of certain hydroids. They have the form of long, slender tentacles, and bear lasso cells..

Basommatophora :: Basommatophora (n. pl.) A group of Pulmonifera having the eyes at the base of the tentacles, including the common pond snails..

Nudibrachiate :: Nudibrachiate (a.) Having tentacles without vibratile cilia.

Opelet :: Opelet (n.) A bright-colored European actinian (Anemonia, / Anthea, sulcata); -- so called because it does not retract its tentacles..

Calycozoa :: Calycozoa (n. pl.) A group of acalephs of which Lucernaria is the type. The body is cup-shaped with eight marginal lobes bearing clavate tentacles. An aboral sucker serves for attachment. The interior is divided into four large compartments. See Lucernarida.

Rhinophore :: Rhinophore (n.) One of the two tentacle-like organs on the back of the head or neck of a nudibranch or tectibranch mollusk. They are usually retractile, and often transversely furrowed or plicate, and are regarded as olfactory organs. Called also dorsal tentacles. See Illust. under Pygobranchia, and Opisthobranchia..

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