References
- Woodward , B.B. 1903 . Journ. of Conch. , x : 358 – 361 .
- 1910 . Abhandl. d. Senckenb. naturf. Gesell. , xxxii : 445 – 445 .
- 1874 . Jick. Faun. L. u. Süssw. Moll. N.O.-Af. , : 124 – 124 . 125, 296, pl. v. figs. 14-16.
- 1889 . Journ. de Conch. , xxxvii : 9 – 9 . 10, pl. i. fig.