List of the Molhtsca of Missoun. 89 



82. SucciNEA cAMPESTRis Say. 



Bluff City Landing (Hambach). 



holopoda. 



Helicid^. 



POLYGYRA Say. 



83. PoLYGYRA LEPORINA Gould. 



Monett, Barry Co. (2) ; Cape Girardeau Co. 

 (2) ; Neeley^dile, Butler Co. (2). 



84. PoLYGYRA FRAUDULENTA Pils. 



Fern Glen, St. Louis Co. (15) ; Allanville, Cape 

 Girardeau Co. (3) ; Kimmswick, Jefferson Co. 



(1). 

 The peristome is not reflected backward and rounded 

 as in neglecta, but is widely reflected and directed in- 

 wards forming a basin-shaped mouth. The upper tooth 

 on the lip is the broader, and generally slightly bifid, 

 and is on the edge, contrary to the type description. The 

 specimens are 13 to 17 mm. diameter, and in one case, 

 in which a shell had been injured and repaired, only 12 

 mm. The only difference between these and neglecta 

 seems to be in the size and the diameter of the umbili- 

 cus. In these the umbilicus extends to the apex of the 

 first whorl, but it is not wide enough to see the whorls 

 to the apex, while in neglecta it is. The Allanville shells 

 are the larger, up to 171/2 mm. diameter. All are flatter 

 than Indiana specimens. 



85. PoLYGYRA NEGLECTA Pils. 



Carthage, Jasper Co. (7) ; Cassville, Barry Co. 

 (12); Seligman, Barry Co. (P & F.) ; Spring- 

 field, Greene Co. (P. & F.) ; Chadwick, Chris- 

 tian Co. (P. & F.). 



