32 PALUDINA INTERTEXTA. 



inside reddish, sometimes bluish, and generally 

 banded with reddish: opercle bright claret color. 

 Geographical Distribution. Found abun- 

 dantly in the neighborhood of New Orleans: 

 South Carolina is given as the locality of 

 specimens in the Academy's collection. 



OBSERVATIONS. 



The young shell is shorter, more transverse, 

 the aperture proportionally wider, the peristome 

 rarely edged with black; and the anterior por- 

 tion of the labium is often of a bluish tinge. 



Say's figure was taken from a shell about 

 the size of my figure 3, which represents a 

 shell differing considerably from the large one 

 figured; the two agree, however, in the minute- 

 ly corrugated surface, and the transverse in- 

 terior bands. 



The somewhat lengthened spire, and the 

 want of an umbilic, distinguish this shell from 

 Ampullaria, as characterized by Lamarck; al- 

 though its approach to that genus is sufficient- 

 ly near, to render an examination of the animal 

 necessary, before its proper place can be per- 

 manently determined. "It is remarkable for 

 the numerous obsolete transverse lines; which 



