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Mollusca   Listen
proper noun
Mollusca  n. pl.  (Zool.) One of the grand divisions of the animal kingdom, a phylum including the classes Cephalopoda, Gastropoda, Pteropoda, Scaphopoda, and Pelecyopoda (syn. Bivalvia, formerly called Lamellibranchiata, or Conchifera). These animals have an unsegmented bilateral body, with most of the organs and parts paired, but not repeated longitudinally. Most of them develop a mantle, which incloses either a branchial or a pulmonary cavity. They are generally more or less covered and protected by a calcareous shell, which may be univalve, bivalve, or multivalve. Note: Formerly the Brachiopoda, Bryzoa, and Tunicata were united with the Lamellibranchiata in an artificial group called Acephala, which was also included under Mollusca. See Molluscoidea.

Collaborative International Dictionary of English 0.48

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"Mollusca" Quotes from Famous Books

... examinations and inquiries, during the voyage. Concerning the nautilus and whale, I learned more through this accomplished seaman than I had ever learned before. The first by examination of the mollusca, which were frequently caught by Captain L. for my accommodation—and of the latter, by oral information received from him (who had been a great whaler) on frequently observing those huge monsters during ...
— Official Report of the Niger Valley Exploring Party • Martin Robinson Delany

Words linked to "Mollusca" :   Gasteropoda, class Gasteropoda, Animalia, kingdom Animalia, phylum Mollusca, Gastropoda, Bivalvia, class Polyplacophora, class Gastropoda, Scaphopoda, mollusk, mollusc, class Lamellibranchia, class Bivalvia, Lamellibranchia, shellfish

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