Reeve, L. A. (1849-1850). Monograph of the genus
Achatina. In:
Conchologia Iconica, or, illustrations of the shells of molluscous animals, pl. 1-23 and unpaginated text. L. Reeve & Co., London. [stated dates: pls 1-8, Feb. 1849; 9-13, Mar. 1849; 14, Apr. 1849; 15, 16, May 1849; 17-19, Jun. 1849; 20-23, Mar. 1850].