imageimage  imageimage 
Matheson Hammock; Cox Hammock

The Matheson shell has a very weak callus exposing the parietal to an unusual extent.


imageimage  imageimage
imageimage  imageimage
Timm's Hammock

The shell at the lower right has a pattern and color close to that of alternatus. Any castaneozonatus group shell with a white tip is placed as deckerti. I can go along with this tradition.

Edited 22 times by Lysiloma Nov 19 14 9:33 AM.