172 DESCRIPTION OF 



Melania viridis. Plate 5, Fig. 19. 



Testa IcBvi, subfusiformi, subcrassd, viridi ; spird brevi, obtuso conoided; suturis linearibus; anfrac- 

 tibus quinis, subconvexis ; aperturd ovatd, subgrandi, alba. 



Shell smooth, subfusiform, rather thick, green; spire short, obtusely conical; sutures linear; whorls fire, 

 somewhat convex ; aperture ovate, rather large, white. 



Hab. Vicinity of Cincinnati, Ohio. T. G. Lea. 



My Cabinet, and Cabinets of T. G. Lea, and P. H. Nicklin. 

 Diam. .27, Length .32 of an inch. 



Remarks. — Inhabits with the M. occidentalis herein described, and resembles 

 it. It is a smaller species, has one more whorl, has a higher spire, and among 

 nine individuals before me, I see no indications of transverse strise. The aper- 

 ture is rather more than half the length of the shell. 



Melania occidentalis. Plate 5, Fig. 20. 



Testa l(Bvi, subglobosd, subcrassd, viridi; spird brevi, mucronatd; suturis linearibus ; anfractibus 

 quaternis, subconvexis; aperturd ovatd, magna, intus vel purpured vel alba. 



Shell smooth, subglobose, rather thick, green; spire short, pointed; sutures linear; whorls four, some- 

 what convex; aperture ovate, large, within purple or white. 



Hab. Vicinity of Cincinnati, Ohio. T. G. Lea. 



My Cabinet, and Cabinets of T. G. Lea, and P. H. Nicklin. 

 Diara^ .30, Length .37 of an inch. 



Remarks. — This is a fine species about the size of Melania subglobosa, Say, 

 [Anculosa) and it has been confounded with it. I have specimens of suhglobosa 

 which were brought by Prof Vaauxem from the Holston, at the time he gave 



new species of Anculosa by Mr. Anthony. Anculotus carinatus and Anculotus Kirtlandianus, both 

 from the falls of the Kanawha. Judging from the description and figures, I am led to the conclusion, that 

 both these were identical with M. injlala, and from the great variety of this proteus species, I am not sur- 

 prised at its being mistaken. The peculiar character, however, of the angle and channel of the base in 

 this species, is evident throughout. I am not aware of the animal having been yet observed: when ex- 

 amined, it may prove to be a true Anculosa. If so, the synonymy will stand thus : 

 Anculosa inflata, Lea. 



Melania dilatata, Conrad. 



Melania Rogersii, Conrad. 



Anculotus carinatus, Anthony. 



Anculotus Kirtlandianus, Anthony. 



