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An Illustrated and Cross-Referenced Glossary of Malacological and Conchological Terms |
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| by Paul S. Mikkelsen | |||
| Term | Definition |
| TENTACLE (1) | In snails: an elongate sensory structure on the heads of snails; in some groups (e.g., Stylommatophora) it bears an eye at its tip, while in others (e.g., Basommatophora) at the base; see also: CEPHALIC TENTACLE; RHINOPHORE; EYE STALK. | |
| TENTACLE (2) |
In squid, one of the 4th pair (dorsal pair = No. 1) of the 5 pair of appendages surrounding the mouth; usually longer than the "ARMS"; (the other 4 pair of appendages) and extensible; see also: HECTOCOTYLUS. See the detailed web page on tentacle terminology, from the excellent "Cephalopod Glossary" by Richard E. Young, Michael Vecchione, and Katharina M. Mangold. |
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| TENTACLE, CEPHALIC | A tentacle on the head. In gastropods, the anterior pair of tentacles; see also: RHINOPHORE. | |
| TENTACLE, EPIPODIAL | A tentacle on the FOOT, or (in some species) arising from a continuous fold set along the side of the foot, known as the EPIPODIUM. | |
| TENTACLE, LABIAL | = ORAL TENTACLE. See illustration: Composite Nudibranch. | |
| TENTACLE, ORAL | [need definition]. In nudibranchs… ; = LABIAL TENTACLE. See illustration: Composite Nudibranch. | |
| TENTACLE, PALLIAL | A tentacle, in rissoids and some other MESOGASTROPODS, growing from the edge of the mantle skirt on the right side and occasionally also on the left. In turritellids, a whole series of pallial tentacles lies around the entrance to the MANTLE CAVITY. | |
| TENTACLES, METAPODIAL | One of two tentacular outgrowths (in the rissoids, lacunids, nassids, etc.) at the hind end of the FOOT or at the point where the OPERCULUM is attached. | |
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