His main research interests involved land snails in the families Achatinellidae and Partulidae, groups for which he was a major authority, although he did work with other mollusks as well.
By the structure of the male organs Strobilops resembles Vallonia, Pupilla, Lauria, the Achatinellidae, and some other groups are similar in having a bifurcate penial retractor and a long, tripartite appendix.