Davis, G.M.; Mckee, M. (1989). A new species of Heleobops (Prosobranchia: Hydrobiidae: Littoridininae) from Maryland. Proceedings of the Academy of Natural Sciences of Philadelphia, 141: 213-249.
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Davis, G.M.; Mckee, M.
1989
A new species of Heleobops (Prosobranchia: Hydrobiidae: Littoridininae) from Maryland.
Proceedings of the Academy of Natural Sciences of Philadelphia