Perrona eleonorae Harzhauser & Landau & Janssen 2022

Perrona eleonorae group

This group comprises Perrona eleonorae (Hoernes & Auinger, 1891), Perrona lydiae (Hoernes & Auinger, 1891) and most probably Perrona ? herculea (Mayer-Eymar, 1886). These species seem to be closely related based on their moderately large, solid, buccinoid shells with moderately gradate to conical spire, short siphonal canal and thickened fasciole. Species of the Perrona descendens group are smaller, fusiform rather than buccinoid and usually have shorter spires relative to the last whorl. The shape is unusual for modern Perrona species and especially the weakly tubercular peribasal and perifasciolar cords of P. eleonorae are atypical for Perrona. Nevertheless, P. eleonorae and P. lydiae develop a typical Perrona sculpture on early teleoconch whorls with comma-shaped riblets between two smooth adsutural cords. Therefore, we place this group in Perrona and interpret it as convergent late teleoconch whorl morphology with Granulatocincta nov. gen., which however, differs clearly in its tripartite early teleoconch whorls and the beaded sculpture.