Morphology and Systematics of the Enigmatic Volutid Plicoliva Zelindae (Petuch, 1979) (Mollusca: Gastropoda)
Abstract:The morphology of the living animal, anterior alimentary system and nervous system of Plicoliva zelindae is described. Presence of paired siphonal appendages, broad cephalic shield and lateral lappets, as well as a long connective between the supraesophageal and right pleural ganglia confrrm the assignment of this taxon to the family Volutidae. The subfamily Plicolivinae, characterized by its multicuspid lateral teeth, distinctive sabot-like rachidian teeth, and a gland of Leiblein with greatly enlarged terminal bulb, shares some anatomical features with the volutid subfamilies Haliinae and Volutinae. With certain members of the former (e.g. Amoria) it shares a distinctive external pigmentation pattern and similar siphonal appendages and rachidian teeth. Comparisons of Plicolivinae with published data on various species of Volutinae reveal similar shell morphology and the presence of a gland of Leiblein with an enlarged terminal bulb in both subfamilies.
Document Type: Research Article
Publication date: 1995-03-01
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