Work found, with species-group names introduced therein:
Lima, S. F. B. de., J. C. N. de Barros and R. E. Petit. 2007. A new species of Gerdiella (Gastropoda: Cancellariidae) from the South Atlantic Ocean off Brazil with discussion of an undescribed species. Nautilus 121 99-103. [Stated date: 27 Jun 2007.] Gerdiella alvesi