76 AMERICAN JOURNAL 



Description of thirteen new Species of Melanidae of the 

 United States : by isaac lea. 

 Ooniohasis subrhombica, Hog Co., IST. Georgia. 

 " fraterna, Caliawba Rivei', Alabama. 

 " Momee^ Eome, N. Georgia. 



" quadricincta^ Coosa River, Ala., E. 



Tennessee, N. Georgia, &c. 

 " j^mithsom'ana, N. Geor., & East Tenn. 



" puUa, Cumberland Gap, East Tenn. 



" pupaeformis, Coosa River, Alabama. 



Trypanostoma ve7iustum, Big Prairie Creek, Ala. 

 " cinctum, North Alabama. 



" univittatum, Cahawba Riv., Ala. 



'' corneum,, Tennessee. 



" napoideii'm, Tennessee. 



Schizostoma Showalterii, Coosa River, Alabama. 

 We fear that this last name, as proposed, ought not to stand. 

 Mr. Lea used it once before for a shell which proved to have 

 been previously described by Mr. Anthony as Sch. carniferum. 

 If we now admit the name, naturalists will always be at a loss 

 to understand which species is referred to by it. We suggest 

 the propriety of recognizing the one now described as Showal- 

 teriana, which perhaps may present sufficient difference, and 

 still remain as it was intended to be, a compliment to the assi- 

 duous naturalist who has so greatly enriched our collections 

 with new southern species. 



Description of five new species of Lymnsea of North Amer- 

 ica : BY ISAAC LEA. 



L. Smithsoniana, Loup Fork, Platte River. 

 L. Traskii, San Antonio Arroya. 

 L, Jamesii, Ohio, Georgia. 

 L. Lecontii, Georgia. 

 L. Arctica, Moose River, B. A. 

 As Limnea TrasJcii, Tryon, was published in 1863, Mr. Lea 

 will have to find another name for his species. 



Descriptions of two new species of Unionidse of South 

 Africa : by isaao lea. 



Spaiha Natalensis, JJnio Natalensis. 



Descriptions of twenty four new species of Physa of the 

 United States and Canada : by isaao lea. 



P. Niagarensis, Niagara. P. AS'Aoi<;a?ter/i,Uniontown,Ala. 



P. Altonensis, Illinois. P. Smithsoniana, Loup Fork, 



P. crocata, Lafayette, Georgia. Platte River. 



P. Forsheyi, Rutersville, Tex. P. Warreniana, Loup Fork, 

 P. tenuissima^ Alexandria, La. Milwaukee, Grand Rap- 



P. Halei, Alexandria, La., ids, Mich. 



