VIVIPARA. 39 



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 teh mouth from being regular. (Zea.) 



Paludina 'Wareana, Shuttlewoeth (1. c.) — Shell rimately per- 

 forate, ventricose, rather thin, subopaque, with delicate concentric lines, 

 olivaceous-ferruginous, thickly streaked with smoke co- 

 lor ; whirls 4, inflated, sutures deep ; aperture oval, 

 white, ends joined by a thin, glassy callus ; peristome 

 straight, sharp. 



Shell somewhat resembling Pal. obtusa, but is very 

 truncated, rimate, perforate, ventricose, rather thin and 

 transparent, almost opaque ; striae fine ; color olive green 

 blending with iron ; surface broken by numerous curved 

 streaks, sometimes linear, sometimes stronger ; whirls 

 4, slightly increasing ; first whirl entirely eroded, the se- 

 cond slightly so in the shell examined ; whirls ventricose, sutures mode- 

 rate ; aperture ovate, much shorter than the spire, above modified by the 

 penultimate whirl, reddish within, bluish towards the edge ; parietal wall 

 covered with a thin transparent callus ; columellar slightly curved ; peri- 

 stome straight, acute, from below the middle to the base slightly curved. 

 Length 9'", breadth 1'". 



East Florida, in Lake Ware (Rugel). Coll. Carpentier {Shuttleworth) . 



Paludina wareana, Shdttleworth in KiJSTEK, Paludina (Chemn. ed. 2), 

 p. 21, pi. iv, f. 10-11. 



I have not seen this species. Fig. YO is a fac-simile of the 

 outline of one of the figures referred to. 



Vivipara COOSaeiisis, Lea — Shell subglobose, thin, pale, rather 

 smooth, perforate ; spire short ; sutures very much impressed ; whirls five, 

 round ; aperture large, nearly round, within whitish. 



Coosa River, Alabama. Dr. Brumby. My cabinet, and cabinets of Dr. 

 Griffith and Dr. Foreman. Diam. .58, length .62 inch. 



This species is remarkable for its round whirls, its width and large deep 

 sutures. The superior part of the whirls is somewhat flattened. The 

 color is remarkably pale, nearly white. The epidermis is very thin, and 

 under the lens displays very minute, rather regular longitudinal striae 

 crossed on the body whirl by obsolete striae. The aperture is nearly one- 

 half the length of the shell. (Lea.) 



Paludina coosaens(s. Lea, Tr. Am. Phil. Soc, IX, p. 23 (1844). Obs. IV, 

 23. Proc, II, 83 (1841). 



Paludina magnijica, pars., Haldeman, Mon., pt. 6, p. 4 of wrapper. 



Mr. Lea's type of this species bears but little resemblance 

 to V. magnijica, yet Prof._ Haldeman unites the two. I myselt 



