Abstract

ABSTRACT We introduce herein Lanayrella gen. nov. to accommodate two Acteonidae species that have proven resistant to stable classification: Tornatella vagabunda Mabille, 1885 and Acteon ringei Strebel, 1905. The new genus is diagnosed by a protoconch fully immersed within the shell and a platform-like columellar region of the aperture, which bears a strong and sharp adapical fold. Both species are restricted to Tierra del Fuego: Lanayrella vagabunda comb. nov. on the Chilean part and Lanayrella ringei comb. nov. on the Argentinean side. http://www.zoobank.org/urn:lsid:zoobank.org:act:37EA6720-0E0E-4C81-A2A8-F85FA2E53929

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