G.M. Davis

An apparent hybrid zone between freshwater gastropod species Elimia livescens and E. virginica (Gastropoda: Pleuroceridae)
Bianchi, T. S., G.M. Davis, and David L. Strayer. 1994. “An Apparent Hybrid Zone Between Freshwater Gastropod Species Elimia Livescens and E. Virginica (Gastropoda: Pleuroceridae)”. Am. Malacol. Bull. 11: 73-78.