benhutchins's Identifications

This and all other snail shells found at this site were found in a mound of flood debris. Thanks to @benhutchins for helping me with all the IDs! For the Pupillids, we used the keys found in Nekola and Coles, 2010, Pupillid land snails of eastern North America. I would not be at all surprised if we have made a few mistakes.

Found in a litter sample from under a low oak thicket. Only Glyphyalinia sp and cf Helicodiscus nummus were found in the same sample.

From range information, size, and morphology, this does not appear to be Thysanophora hornii, or T. plagioptycha from Fullington and Pratt (1974) Aquatic and Land Mollusca of Texas.

Perhaps it is a species previously recorded from New Mexico, but I don't have immediate access to literature for that region.

Based on Pilsbry, the larger and longer form of Rabdotus in the Guads seems to be R. dealbatus neomexicanus, but Rabdotus in west TX also seems quite confusing to me. There were consistently two sizes of shells at multiple locations in the Guads, and both (when fresh or wetted) have the 'whitewash' stripes typical of R. dealbatus.