Synopsis of the Genus Achatinella. 311 



variety of A. ovata Newc. His figures of pallida, however, 

 give this species correctly. 



16. A. marmorata Cross Id. Proc Boston Soc. 1848. 



" Adamsi Newc. Ann. Lye. 1. c. p. 19. 



" Adamsii Neivc. Zool. Proc. 1853, fig. 20. 



" perdix Pfr. non Reeve. Mai. Blat. Jane, 1854, p. 116. 



" induta Gul. Ann. Lye. N. Y. I. c. fig. 34. 



" plumbea Gul. " " " " fig. 39. 



" ustulata Gul. [reversed). " " fig. 31. 



Animal light pea green, strongly granulated, one third longer 

 than the shell, tentacles light slate ; mantle and base of foot 

 same color as the body. 



Dr. Pfeiffer allows marmorata Gould, but places Adamsii 

 jSTewc. as a synonym of A. perdix Reeve. 



I have clearly established the identity of my shell with that 

 of Dr. Gould, and do not doubt the specific difference of marmo- 

 rata and perdix. As Mr. Reeve's description dates 1850, those 

 who do not concur in this opinion must place A. perdix as a 

 synonym of A. marmorata. 



11. A. plcta JVIig'hels. Proc. Boston Soc. Jan. 1845. 

 " bulbosa Gul. Ann. Lye. N. Y. 1. c. fig. 71. 

 " picta Pfr. Zool. Proc. Aug. 1845. 



Animal densely black, surface chequered by fine lines of a 

 light color; tentacles slate, much produced; mantle and bot- 

 tom of foot brownish black. 



When extended, same length as the shell. 



18. A. venusta MIgBiels. Proc. Boston Soc. Jan. 1848. 



Animal slender, body flesh color with black puncta down 

 the sides; tentacles very black, superior ones long, inferior 

 ones very short. 



"When extended, two thirds as long as the shell. 



