Work found, with species-group names introduced therein:
Davolos, J. and R. G. Moolenbeek. 2005. The intertidal gastropods of South Georgia. Part I: Patellidae, Scissurellidae, Trochidae and Cerithiidae. Gloria Maris 44 128-145. [Stated date: -- Dec 2005.] Scissurella georgica