Abstract
Hemicycla (Adiverticula) diegoi n. sp. from the westernmost part of the Teno massif above the Lighthouse at Punta de Teno, Tenerife, Canary Islands is described and compared to conchologically and anatomically similar species in the genus Hemicycla Swainson, 1840. The validity of the new species is corroborated by a phylogenetic analysis including several congeneric species, interand intraspecific genetic distances and a morphometric comparison by means of a discriminant function analysis. Hemicycla cf. paivanopsis (Mabille, 1882) and Hemicycla quadricincta quadricincta (Morelet, 1864) from La Gomera and Hemicycla berkeleii (R. T. Lowe, 1861) from Gran Canaria are tentatively placed in Hemicycla s. str. on the basis of a phylogenetic analysis. Furthermore, Eobania vermiculata (O. F. Müller, 1774) is reported as an introduced species in Gran Canaria for the first time.References
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