adapical
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parietal ridge — (MOLLUSCA: Gastropoda) The prominence on the parietal lip near the adapical corner of the aperture … Dictionary of invertebrate zoology
sutural shelf — (MOLLUSCA: Gastropoda) A horizontally flattened band that may contact the adapical suture of the whorls … Dictionary of invertebrate zoology
umbilicus — n.; pl. lici [L. umbilicus, navel] 1. A navel, or navel like depression. 2. (MOLLUSCA: Gastropoda) A cavity formed around the shell axis between the faces of the adaxial wall of the whorls where these do not coalesce to form a solid columella. a … Dictionary of invertebrate zoology
Conostichoceras — Scientific classification Kingdom: Animalia Phylum … Wikipedia
Prionocidaris — hawa … Wikipédia en Français