318 Synopsis of the Genus Achatinellm 



Few species of the genus pass through, a greater variety of 

 changes than this, in form and markings. My collection num- 

 bers over twenty, which may fairly be classed as varieties. Of 

 many of them I have examined the animals, and find no differ- 

 ence in color, or so slight as to call for no special notice. 



The ventricose light-colored or clouded reversed varieties are 

 perhaps, in the appearance of the shell, farther removed from 

 the type than those given here as synonyms. 



44. A. bacca Reeve. Mod. pi. 6, fig. 45. 



Animal of a greenish slate above, tentacles and sheaths dark 

 brown, mantle, yellowish green ; length, when extended, equal 

 to the shell. 



45. A. straminea Reeve. Mon. pi. 5, fig. 38. 



" gravida var. Fer. In Imperial Museum, Paris. 



Animal of a uniform light flesh-color, oral aperture margined 

 with a line of orange. 



46. A, fByroilii <j»ray. Wood's Index, Supplement, pi. 7, fig. 30. 

 " melanastoma JVewc. Zool. Proc. pi. 22, fig. 7, 1853. 

 " limbala Gal. Ann. Lye. 1. c. pi. 8, fig. 70. 

 " pulcherrima Reeve non Sivains. Mon. pi. 3, fig. 23. 

 " pulcherrima Pfr. non Sivains. Mon. ii. p. 237. 



It gives me pleasure to relinquish this species to its original 

 author. An examination of Wood's figure led me to the con- 

 clusion that the one I had described was identical with A. 

 Byvonii. I had the satisfaction of finding the type in the Bri- 

 tish Museum, and of thus establishing not only the synonym, 

 but also of clearing the group of much of the difficulty by 

 which it was surrounded. 



