P.  Bartsch, Report on the Turton Collection of South African marine mollusks, with additional notes on other South African shells contained in the United States National Museum. Washington: Government Printing Office, 1915, p. 305.

P.  Bartsch, Report on the Turton Collection of South African marine mollusks, with additional notes on other South African shells contained in the United States National Museum. Washington: Government Printing Office, 1915, p. 305.