| 单词 | pleurotomarioid | 
| 释义 | pleurotomarioidadj.n. Zoology and Palaeontology. rare.  A. adj.   Resembling or allied to the genus  Pleurotomaria of prosobranch gastropod molluscs. ΚΠ 1890    Cent. Dict.  				Pleurotomarioid, of or relating to the Pleurotomariidæ. 1902    Amer. Naturalist 36 927  				When the shell is ribless the angulation becomes a smooth keel. This feature appears early in the pleurotomarioid shells.  B. n.   A prosobranch gastropod mollusc of the family  Pleurotomariidae or the superfamily  Pleurotomarioidea. ΚΠ 1890    Cent. Dict.  				Pleurotomarioid, a species of the family Pleurotomariidæ. 1995    Paleobiology 21 261/2  				Major differences have similar functional implications for all aquatic snails, regardless of whether the snails are pleurotomarioids, neritoids, neo-gastropods or pulmonates. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). <  | 
	
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