BioStor
 | 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 Paul Bartsch (1915) United States National Museum Bulletin 91: 1-305 |
 | Valid zoological names of the Portland Catalogue Harald A Rehder (1967) Proceedings of the United States National Museum 121(3579): 1-51 |
 | Late Tertiary and Early Quaternary fossil Mollusca of the Hondeklip area, Cape Province, South Africa B Kensley and J Pether (1986) Annals of The South African Museum 97: 141-225 |