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Since the last Century the species Cymba gracilis Broderip, 1830 was understood either as Cymbium marmoratum Link, 1807 or it has been referred to the synonymy of C. marmoratum. In the most recent revision of the genus Cymbium, Bruynseels (1975) does not mention the name C. gracile at all. C. gracile is easy to distinguish by several characters from C. marmoratum. C. gracile dwells in the bottom of shallow and sandy shores of Ghana and Togo, whereas C. marmoratum lives in rocky habitats of the shallow waters off the shore of Senegal. 11 pp., 7 figs, gr. 8. …

19 pp., 8 figs, 2 tabs, gr. 8.

Lawrence, Kansas. Geological Society of America & University of Kansas Press. xvii + 198 pp., 123 figs, hardcover gr. 8 [17 x 24.7 cm] [Moore, R. C. (ed.)].