ANCULOSA. 407 



Habitat.— Oluo River near Cincinnati; Bescke. 



Longitude, 8 ; latitude, Gh lin. 



Mclania cruentata. — Shell subglobose, acute at the apex, variable, 

 striated, green, maculate seriately, conspicuously at the ovate ob- 

 lique aperture, banded with blackish-purple; columella with a I'eddish 

 callus; lip simple, produced above. 



Habitat. — Ohio River near Cincinnati; Bescke. 



Longitude, 5; latitude, 4.^ lin. — Jlenke. 



Melania ovnlaris. — Shell ovately conoidal, variable, substriate, 

 rather shining greenish, becoming brownish-red, with apex truncate 

 with age ; aperture ovate ; columella subcallous above ; lip rounded 

 above. 



Habitat. — Ohio River near Cincinnati. 



Longitude, 1 poll. ; latitude, 7 lin. 



Melanopsis neritifurmis. — Shell globose, neritiform ; apex very ob- 

 tuse, reddish-black, smooth; aperture ovately semi-lunar; base 

 scarcely emarginate; columella contorted, callous above, depressed 

 in the middle ; outer lip doubly sinuated. 



Habitat. — The Ohio and Wabash. — Deshayes. 



Ancitlotus anrjulatus. — Shell subglobose ; body-whorl ventricose, 

 contracted above, biangulated; spire very short; volutions cari- 

 nated at the suture ; color olivaceous, with about four ^j gj^ 

 series of dark, quadrangular Spots on the body- whorl. 



Observations. — Inhabits Flint River, Morgan County, 



Alabama, adhering to stones and is common. — Conrad. 

 Jlelania Cincinnatiensis. — Shell carinate, much de- 

 pressed, below compressed, brown, three-banded, with two carina?. 

 Fig. 812a. Poi"'^^^ at the apex; whorls four; aperture rounded, 



^ Habitat. — Near Ciucinuati, Ohio. 



Diameter, -14; length, -IG of an inch. 



Observations.— T\\\s is a very minute species recently taken in the 

 vicinity of Cincinnati, by my brother T. G. Lea. It is very remark- 

 able for its roof-shaped spire, and two carina;, which are colored. 

 More recently found by Dr. Troost in the llolston, Tennessee.— Ze«. 



Leptoxis rehisa, Rafinesque, has been doubtfully referred to 

 this species by Prof. Haldeman. 



