WoRMS taxon details
original description
Gray, J. E. (1850). [text]. In: Gray, M. E., <i>Figures of molluscous animals, selected from various authors</i>. Longman, Brown, Green and Longmans, London. Vol. 4, iv + 219 pp. (August) [Frontispiece (portrait of Mrs. Gray); pp. ii–iv (preface); 1–62 (explanation of plates 1–312 in Volumes 1–3); pp. 63–124 (systematic arrangement of figures); 127–219 (reprint of Gray 1847). , available online at https://www.biodiversitylibrary.org/page/11632090 page(s): 87 [details]
original description
(of Collonia (Heniastoma) Cossmann, 1918 †) Cossmann, M. (1918). <i>Essais de paléoconchologie comparée</i>. Onzième livraison. Paris: published by the author. 388 pp., 11 plates. , available online at https://www.biodiversitylibrary.org/item/111979 page(s): 54, 58 [details]
subsequent type designation
Carpenter, P. P. (1864). On new Californian marine shells. Part II. <em>Proceedings of the California Academy of Sciences.</em> 3 (3): 175-177., available online at http://www.biodiversitylibrary.org/page/3148039 page(s): 175 [details]
Present Inaccurate Introduced: alien Containing type locality
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