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Crassopleura maravignae : ウィキペディア英語版 | Crassopleura maravignae
''Crassopleura maravignae'' is a species of sea snail, a marine gastropod mollusk in the family Drilliidae. It is the only known species within the genus ''Crassopleura''. ==Description== The shell of an adult shell varies between 10 mm and 15 mm. The shell is yellowish- or reddish-brown, smooth and shining and sometimes banded. The five to six whorls of the teleoconch are usually somewhat round-shouldered. The fusiform shell is finely flexuously longitudinally plicate with about twenty plicae. The shell has a high spire with the body whorl less than half the total length. The dirty white aperture is ovate and has a broad and very short siphonal canal. The outer lip is usually externally varicose. The anal sinus is wide.〔〔George Washington Tryon, Manual of Conchology vol. VI p. 199; 1884 (treated as ''Drillia maravignae'')〕
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