[A] Harris, J. Arthur: Annotated catalogue of the crayfishes of Kansas.
Kans. Univ. Quart., vol. IX, No. 4, October, 1900.
[B] I am not sure, in a trip across country, which of the two creeks,
which flow together in this vicinity, I examined.
[C] The water here is probably not more than fifteen degrees above that
in which _C. virilis_ was found to be so numb as to be almost incapable
of movement. See Harris, Annotated Catalogue.