Borsoniidae Drilliola - Discussion sur le genre, ses espèces, la planche

Bouchet and Warén were unable to locate the typematerial of D. loprestiana and relied on what was “tra-ditionally” considered as D. loprestiana when they de-fined the synonymy (Warén, pers. com.). The Calcaracollection, which included the type of D. loprestiana,was (partially) obtained by Giuseppe Brugnone. WhenBrugnone died, Monterosato purchased his collection,including Calcara’s specimens. Unfortunately Bru-gnone replaced the original labels by hand, making itdifficult to distinguish his own specimens from thoseof Calcara. In our investigation, we located only onespecimen identified as Pleurotoma loprestiana in theold Monterosato collection. There is not much infor-mation on this specimen, but it is identified as havingbeen collected by Calcara (found in the Museo di Zoologia ‘P. Doderlein’- Palermo University, registered as MAL-1930). Therefore, we conclude that this material is the holotype of D. loprestiana (Fig. 3H, I, J, K). The specimen has a dome shaped lecithotrophic protoconch, narrower aperture, stronger subsutural cord and longer siphonal canal than D. pulchella. Therefore, we cannot accept the synonymy proposed by Bouchet and Warén.