HANNA AND JOHNSON: MOLLUSKS OF KANSAS. 117 



5. Lymnsa obrussa? Say. 



Several specimens were found which more rearly resemble this than 

 any other species in our collections. The aperture, however, is shorter 

 and broader. 



6. Lymnsa parva Lea. 



Fifteen specimens from the Long Island marl. 



7. Lymnsa desidiosa Say. 



8. Lymnsea humilis Say. 



The latter two species wei'e quite common in the marl beds. 



9. Physa anatina Lea. 



This is a smooth Physa, agreeing with specimens of anatina from 

 eastern Kansas identified by Mr. Bryant Walker. 



10. Planorbis trivolvis Say. 



This widely distributed species does not live in Prairie Dog creek at 

 the present time. Several fossils were found. 



11. Planorbis truncatus Say. 



One spec'men found at Long Island. 



12. Planorbis blcarinatus Say. 



Numerous specimens were found in the green marl near Long Is- 

 land, and the species lives in Prairie Dog creek at the present time. 



13. Planorbis deflectus Say. 

 Two specimens found. 



14. Zonitoides miniscula Binney. 



A few fossils found in a railroad cut just east of Norton. 



15. Zonitoides miniscula alachuana Dall. 



Fossils were found in two or three deposits. The shells are much 

 smoother than recent specimens of either alachuana or typical miniscula. 



16. Zonitoides arborea Say. 



Several fossils found. The last whorl is rather more flattened than 

 in recent specimens, and all trace of the brownish color was lost. In 

 Kansas, this species does not live west of Topeka at the present time. 



17. Euconulus fulvis* Muller. 



Quite common as a fossil, and typical. Fine spiral sculpture over 

 the entire shell, and the whorls are almost six. 



18. Vitrea hammonis Miiller. 



Several fossils were found in the different beds. The last whorl in- 



• See Pilslny and Ferris. Proc. Acad. Nat. Sci. Pliila.. 1910, p. 133. 

 2-Univ. Sci. Bull.. Vol. VII. No. 3. 



