An Illustrated and Cross-Referenced Glossary of
Malacological and Conchological Terms
|by Paul S. Mikkelsen|
|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.|
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.
|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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