Work found, with species-group names introduced therein:
de Souza, P. J. S. and A. D. Pimenta. 2002. A new species of Granigyra Dall, 1889 (Gastropoda: Skeneidae) from Brazil and a review of known Western Atlantic species. Veliger 45 299-302. [Stated date: 01 Oct 2002.] Granigyra oblatogyra