80 Trans. Acad. Sci. of St. Louis. 



40. Physa integea halei Lea. 



Small stream, Peirce City, Lawrence Co., Sept., 



1887, (7). 



So identified by Pilsbry. 



41. Physa geovenoki Lea. 



From Pettis County: — Crandall's fountain, Se- 

 dalia (20); Slough, Flat Creek, July, 1883, 

 (16); Pond, E. Brown's, Sept., 1884, (10) 

 Branch, Springfork (50) ; Pond, Georgetown 

 June, 1885, (35); McNutt's Branch, Pin Hook 

 April, 1891, (15); Springfork, Aug., 1881, (35) 

 Lake, Peirce City, Lawrence Co., June, 1881 

 (35) ; Lake, Mountain Grove, Wright Co. (4) 

 Pool, Cow Skin River, Macdonald Co., July, 

 1891, (3); Nevada, Vernon Co., Aug., 1884 

 (30); Williamsville, Wayne Co., 1889, (14) 

 Blue Lick Springs, Saline Co., 1892, (34). 



42. Physa ceandelli Baker 



Clear and Muddy Creeks, Pettis Co. 



This was described by Mr. Crandall as Physa rhom- 

 hoidea, but as that name was preoccupied, it was 

 changed as above by Mr. Baker. 



43. Physa plicata DeKay. 



Near Mouth of Wolf Eiver (Hambach). 



44. Physa elongata Say. 



Mouth of Platte River (Hambach). 



AlSrCYLID^. 



ancylus Geoffroy. 



45. Ancylus kieklandi Walker. 



Muddy Creek, Pettis Co., 1886, (8) ; Flat Creek, 

 Pettis Co. (16); Same, Aug., 1886, (25); Osage 



