Synopsis of the Genus Achatinella. 319 



47. A. ellipsoidea Gould. Proe. Bost. Soc. 1848, p. 200. 



" pupoidea Newc. Zool. Proc. 1853, pi. 23, fig. 42. 



There is little doubt, from the descriptions, of the identity of 

 these species ; of course the priority belongs to Dr. Gould. 



48. A. magna C. B. Adams. Contr. to Conch, page 125. 

 " Baldivinii Newc. Zool. Proc. pi. 24, fig. 72. 1853. 



Animal of inky black above, veined with white ; when ex- 

 tended, as long as the shell ; base of foot and mantle of a 

 bluish grey. 



49. A. inodesta C. B. Adams. Contr. to Conch, p. 128. 



50. A. Tappaniana C. B. Adams. Contr. to Conch. 



p. 126. 



" eburnea Gul. Ann. Lye. 1. c. p. 199, fig. 28 a. — 28 b. 



" ampulla Gul, " " " p. 200, " 29. 



" fasciata Gul. " " " p. 201, " 30. 



Mr. Gulick has taken three varieties, describing them as dis- 

 tinct species. All these varieties have been subjected to the 

 critical eyes of Mr. Cuming and of Dr. Pfeiffer, who agree 

 with me in this arrangement. It is due to Mr. Gulick, how- 

 ever, to remark that the differences in the extremes of these 

 varieties are as great as have laid the foundation for many of 

 the species universally received by naturalists. 



51. A. Mighelsiana Pfr. Zool. Proc. 1847, p. 231. 

 Animal uniform bluish-white, tentacles slate. 



52. A. pyrailllS Pfr. Zool, Proc. 1845, p. 90. 



" leucockila Gul. {dwarf), Ann. Lye. 1. c. p. 173, fig. 1. 

 SEPTEMBER, 1858. 23 Ann - Ly °. Nat - Hi st. Vol. VI. 



