Photo 2 is Sulfurina acutissima (Sowerby, 1841), Helicinidae.
G. Thomas Watters, PhD
Curator of Molluscs
Museum of Biological Diversity
Department of Evolution, Ecology & Organismal Biology
The Ohio State University
1315 Kinnear Road
Columbus, OH 43212
v: 614-292-6170
f: 614-292-7774
Visit the Molluscs Division at:
http://www.biosci.ohio-state.edu/~molluscs/OSUM2