90 



CATALOGUE OF THE GENUS MELANIA. 



Paludina Haleiana. Pi. IX. Fig. 58. 



Testa Ixvi, ventricoso-conoideu, subtenui, rufo-corneu, imperforata; spird brevi; suturis vahle impresses ; 

 anfractibus quaternis, subconvexis; apertura magna, sitbrotunda, cserulea. 



Shell smooth, ventricosely conical, rather thin, reddish horn-colour, imperforate; spire short; sutures much 

 impressed; whorls four, nearly convex; aperture large, nearly round, bluish. 



Hab. Alexandria, Louisiana. J. Hale, M. D. 



My cabinet and cabinet of Dr. Hale. 

 Diam. .4, Lengtb .55 of an inch. 



Remarks. — This species is nearly allied to the P. Troosliana, (Nobis,) but is rather 

 smaller, of a darker colour, not quite so rotund, and imperforate. These differences 

 would distinguish it without difficulty. In the Haleiana there is a disposition in most of 

 the specimens to a compression below the sutures. This makes quite a shoulder at the 

 .sutures and prevents the mouth from being regular. 



Note. — Since the first sheet of this paper was printed off, two more Mehmia, by Dunker, have been added to 

 the list, making in all three hundred and ninety-seven. 



CATALOGUE OF THE GENUS MELANIA, 



RECENT AND FOSSIL. 



Melania abjecta, 



" abrupta, 



acicula, (Eulima 



aculeus, . 



acuminata, 



acuto-carinata, 



acuta, 



adspersa, . 



-Egyptiaca, 



aequalis, . 



yEthiops, . 



afra, 



agnata, 



Alcxandrcnsis, 



altilis, 



alveare, 



amarula, . 



angulosa, . 



aimulifcra, 



Lam., 



1843. 



Ferussac. 



Von Den Buscl 



Haldeman. 



Lea. 



Lea. 



Zool. Soc 



Say. 



Lamarck. 



Hinds. 



Woodward, f. 



Rich. 



Ferussac. 



Lea. 



Grateloup./. 



Rang. 



Menke. , 



Lea. 



Lea. 



Gould. 



