columellar lip
(MOLLUSCA: Gastropoda)
The internal lip of the aperture of a shell.

Online Dictionary of Invertebrate Zoology. . 2005.

Look at other dictionaries:

  • inner lip — (MOLLUSCA: Gastropoda) The inner edge of the aperture of a univalve shell extending from the foot of the columella to the suture; columellar and parietal lips collectively; see outer lip …   Dictionary of invertebrate zoology

  • pillar lip — noun : the inner or columellar portion of the border of the orifice of a spiral shell …   Useful english dictionary

  • Columella (gastropod) — An X ray image of a shell of a marine triton snail, Charonia, showing the slightly sinuous line of the central columella, reaching from the top of the image (the apex of the shell) to the bottom (the siphonal canal) The columella (meaning little… …   Wikipedia

  • labium — n.; pl. bia [L. labium, lip] 1. A lip. 2. (ARTHROPODA: Chelicerata) In Araneae, the lower lip, forming the floor of the mouth cavity. 3. (ARTHROPODA: Crustacea) The metastoma. 4. (ARTHROPODA: Insecta) One of the mouth part structures, the lower… …   Dictionary of invertebrate zoology

  • Assiminea vulgaris — Taxobox name = Assiminea vulgaris status = regnum = Animalia phylum = Mollusca classis = Gastropoda ordo = Mesogastropoda familia = Assimineidae genus = Assiminea species = A. vulgaris binomial = Assiminea vulgaris binomial authority = (Webster,… …   Wikipedia

  • Phyllonotus pomum — Two shells of Phyllonotus pomum Scientific classification Kingdom …   Wikipedia

  • Clavatula — Apertural view of Clavatula muricata Scientific classification Kingdom: Animalia …   Wikipedia

  • Maxwellia angermeyerae — Scientific classification Kingdom: Animalia Phylum: Mollusca Class …   Wikipedia

  • Maxwellia santarosana — Scientific classification Kingdom: Animalia Phylum: Mollusca Class: Gastropoda …   Wikipedia

  • col|u|mel|lar — «KOL yuh MEHL uhr», adjective. of or having to do with a columella. A columellar lip is the inner lip of a univalve shell …   Useful english dictionary

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