Roger Thoma is a research associate at the MBD and our resident expert on the taxonomy, evolution, and conservation of crayfish. His current research focuses on conservation status of 11 Virginia crayfish species and taxonomy of the Cambarus dubius species complex.

recent publications:

R.F. Thoma and J.W. Fetzner. 2015. Cambarus (Jugicambarus) magerae (Decapoda: Cambaridae) a new species of crayfish from Virginia. Proceedings of the Biological Society of Washington. 128(1): 000–000.

R.F. Thoma. The crayfish fauna of Canada and The United States (North America). 2015. In Freshwater Crayfish: Global Review. Eds. T. Kawai, Z. Faulkes, and G. Scholtz. Science Publishers.