KANSAS CITY REVIEW OF SCIENCE. 
ZOOLOGY. 
NOTES ON THE DISTRIBUTION OF SHELLS.— NO. IV. 
F. A. SAMPSON, SEDALIA, MO. 
A CO backward spring made all vegetation unusually late for the date of 
my trip, and when I left Sedalia on the 12th day of March, 1883, everything 
here was still almost in winter dress, and showed very slight effects of the return- 
ing of spring. A few birds had come, the blue-jay being the first, on the 24th 
day of January ; the blue-birds came on the 20th day of February, though a single 
one Avas seen two weeks earlier; and the robins arrived in flocks on the 3d day of 
March. 
My first stop was at Lamar, in Barton County, Missouri, where I had some 
six hours to wait for a train, and I decided on putting in the time collecting 
shells, and at once started for the woods. I found, however, that the soil was so 
sandy as to make land shells scarce. In the bottom along the north fork of 
Spring River, I found the following : 
1. Zonites arboreus. Say. 
2. Z. minusculus, Binn. 
3. Conulus fulvus, Dr. 
4. Stenotrema leaii, Ward. 
5. Strobila labyrintkica, Say. 
6. Pupa contractu. Say. 
7. P. (?) 
8. Succinea ovalis, Gld. 
9. Carychium exiguum, Say. 
Also the following water shells : 
10. Physa gyrina, Say. 
11. Planorbis trivolvis, Say. 
12. P. bicarinatus, Say. 
13. Amnicola porata, Say. 
14. Sphcereum striatinum, Lam. 
15. S. transversum, Say. 
I got but three species of Unios, though from the shells I saw in some yards 
in the town, there are other kinds in the streams there. 
In a small branch stream, by sifting the mud, I obtained considerable num- 
bers of 
16. Sphcereum (?) 
Of beetles I saw not more than a half dozen species ; two or three kinds of 
