Tentacle sheath
Tentacle Ten"ta*cle, n. [NL. tentaculum, from L. tentare to handle, feel: cf. F. tentacule. See {Tempt}.] (Zo["o]l.) 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. [1913 Webster]

{Tentacle sheath} (Zo["o]l.), a sheathlike structure around the base of the tentacles of many mollusks. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • tentacle sheath — (BRYOZOA) That part of the body wall that supports and encloses the tentacles when everted and retracted …   Dictionary of invertebrate zoology

  • Tentacle — Ten ta*cle, n. [NL. tentaculum, from L. tentare to handle, feel: cf. F. tentacule. See {Tempt}.] (Zo[ o]l.) A more or less elongated process or organ, simple or branched, proceeding from the head or cephalic region of invertebrate animals, being… …   The Collaborative International Dictionary of English

  • moss animal — bryozoan. [1880 85] * * * ▪ invertebrate Introduction also called  bryozoan,         any member of the phylum Bryozoa (also called Polyzoa or Ectoprocta), in which there are about 5,000 extant species. Another 15,000 species are known only from… …   Universalium

  • Ctenophora — For the genus of crane flies, see Ctenophora (genus). Comb jellies Temporal range: Cambrian – Recent …   Wikipedia

  • Polypide — The polypide in bryozoans encompasses most of the organs and tissues of each individual zooid. This includes the tentacles, tentacle sheath, U shaped digestive tract, musculature and nerve cells. It is housed in the zooidal skeleton, which in… …   Wikipedia

  • atrial bag — (BRYOZOA) That part of a polypidian vesicle attached to the frontal wall of a developing zooid, from which the tentacle sheath is formed …   Dictionary of invertebrate zoology

  • duplicature muscle fibers — (BRYOZOA) Muscle fibers that widen the anterior end of the tentacle sheath, through which the lophophore passes during protrusion and serves as fixator ligaments for protruded polypide …   Dictionary of invertebrate zoology

  • lophophore neck — (BRYOZOA: Gymnolaemata) A long movable cylindrical structure formed by the everted tentacle sheath that allows extension of the tentacles beyond the orifice …   Dictionary of invertebrate zoology

  • perimetrical attachment organ — (BRYOZOA: Stenolaemata) Collarlike membrane attached to the tentacle sheath and to both the outer end of the membranous sac and skeletal body wall …   Dictionary of invertebrate zoology

  • tentacular atrium — (BRYOZOA) A cavity inside the tentacle sheath, with tentacles retracted …   Dictionary of invertebrate zoology

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