42 THE NAUTILUS. 



S. P. , collected by H. E. Sargent in a marsh on the Paint Rock 

 River, Jackson Co., Alabama. 



ViVIPARUS CONTECTOIDES COMPACTUS n. Subsp. 



The shell is compactly coiled, imperforate ; whorls a little 

 less inflated than in contectoides. Length 27.5, diam. 20.5 

 mm. Type no. 27731 A. N. S. P., from Dougherty, Georgia. 

 Also from Chetachee creek, Ala,, both lots from the Wheatley 

 collection. 



Campeloma rufum meridionale n. subsp. 



The shell is short, solid, dull citrine, paler at the shoulder ; 

 surface having fine growth-lines as usual, crossed by many 

 weak, minute and crowded spiral striae. Sjnre shortly conic, the 

 summit eroded. Last whorl strongly shouldered, the shoulder 

 narrow ; very convex in the peripheral part. Aperture large, 

 brown within in the upper two-thirds. Lip slightly sinuous. 

 Columellar callus moderate. 



Length 29.3, diam. 20.3, length of aperture 17.8 mm. 



Length 29, diam. 21.3, length of aperture 18.2 mm. 



North Carolina : Little Sugar Creek ; Crozier's Branch. Ca- 

 barrus Co. (type loc), also Georgia. Type 122781 A. N. S. P. 



Distinguished by its short, obese shape and distinct striation. 



Campeloma bufum geniculiforme n, subsp. 



This race is like the preceding in color and sculpture, but 

 differs in outline. The spire is elevated, and the whorls have a 

 broad, horizontal shoulder, below which the wall is nearly 

 vertical, as in typical C. genicula (Conrad). It differs from 

 genicula by the brown color in the mouth and on the eroded 

 summit. 



Length 31.5, diam. 20.4 mm., length of aperture 16.8 mm. 



Dooley Co., Georgia. Type 122782 A. N. S. P. 



Campeloma floridense (Call). 



^^ Campeloma floridense Call MS." (as synonym of C. limum), 

 Call, Bull. Washburn College Laboratory of Natural History, 

 vol. 1, No. 5, p. 159, 160, pi. 6, fig. 7 (May, 1886). 



This species was mentioned as a MS. name under Campeloma 

 limum. by Mr. Call, who apparently had not seen the true 



