306 Synopsis of the Genus Achatinella.' 



2. A. ventuln§ Fcr. Trod. No. 437. 

 " melampoides Pfr. Zool. Proc. 1851. 



Animal intensely black; superior tentacles rather long; 

 bottom of foot and mantle very light grey; motions quite lively. 



Hob. Oahu. 



This shell in the Imperial Museum is a dead and worn 

 specimen, but its identity with melampoides could not be 

 mistaken. 



3. A. vulpina Fer. Hist. Moll. pi. 155, fig. 1. 



" Stewarti Green. Reeve Mori. fig. 26. 



" diversa Gulick {part.)* Ann. Lye. N. Hist. N. Y. VI. fig. 42. 



" varia Gul. " " " " " " 43. 



" analoga Gul. (immature) " " " " " " 47. 



" virens Gul. " " " " " "73. 



" livida Pfr. non Swains. Mon. III. p. 464. 



This is one of the most common shells met with on Oahu, 

 and passes through numerous slight variations, which have led 

 to their description as distinct species. Mr. Gulick, who has 

 very minutely studied cabinet specimens, places the A.produc- 

 ta Reeve, as a synonym of this species, and claims that in that 

 gentleman's Monograph he gives A. varia Gul. erroneously 

 as the true vulpina. 



Specimens exist in the French collection which passed under 

 the eye of Ferussac, and are labelled "A. vulpina" which 

 answer to the shells as figured by Reeve. No doubt can exist 

 of the correct references by European authors to this species. 

 The dextral vulpina differs greatly from the shell described by 

 Mr. Reeve as producta. The figure in Ferussac is from one of 

 those unfortunate individuals discolored by the hot bath. 



•Mr. (Julick's descriptions are in Vol. VI. of the Annals, of the Lyceum, and 

 his figures are on plates vi., vii. and viii. of same volume. 



