12 MELVILL & STANDEN, Molluscafrom N.E. Rhodesia. 



Achatina immaculata Lamarck. 



Achatina immaculata, Lamarck, "Anim. s. vert.," vol. 6, 

 part 2, p. 128, No. 3, 1822. 



Hab. Petauke, February and March, 1905. 



A few examples of this old established Achatina, 

 handsome, with painting of obscure longitudinal brown 

 flames upon an almost equally dark ground. Older 

 examples are unicolorous, and nearly smooth. By some 

 authors the very different looking A. layardi, Pfr., is 

 accounted a mere variety. We can hardly agree with 

 this. An interesting note on the epiphragm of this 

 species was published a few years since by Mr. Edgar A. 

 Smith, with diagrams. {Proc. Mai. Soc. Lond., vol. 3, 

 p. 309, 1899). 



The geographical distribution extends from Delagoa 

 Bay to Nyasaland. 



Achatina morrelli Preston. 



Achatina morrelli, H. B. Preston, Proc. Mai. Soc. Lond., vol. 6, 

 p. 244, fig., 1905. 



Hab. Kapopo, October 26, 1905. 



A young, but well coloured, and living example, which 

 occurred with the Limicolaria sp. 



The author of the species compares it to A. glaucina 

 (Ancey), Smith, from Zamba, on the Shire River. Many 

 examples have been shown us by Mr. Preston, the original 

 locality being Changa Changa, Lusempha Valley, about 

 100 miles N. of Zumbo, on the Zambesi River, which do 

 not exhibit an undue amount of variation. It is a very 

 ornamental species, very strongly cancellate and decussate, 

 excepting on the lower half of body whorl. 



