400 CRAYFISHES. 



Cambarus DIOGENES Girard. 



Neiv localities: — Maryland: Laurel, Prince Georges Co. (U. S. N. M.). 

 Virginia: Dismal Swamp (U. S. N. M.). North Carolina: Near Beaufort, 

 Carteret Co. (Coll. W. P. Hay). Alabama: Auburn, Lee Co. (M. C. Z.). 

 ]\Iississippi : Muldon, Monroe Co. (U. S. N. M.); Agricultural College, Oktil)- 

 beha Co. (U. S. N. M.). Ohio: Toledo, Lucas Co. (U. S. N. M.). Indiana: 

 Near Milltown, Crawford Co. (U. S. N. M.); Lake Maxinkuckee, Marshall 

 Co. (U. S.N. M.); White Co. (U. S. N. M.). Illinois: Wabash Co. (U. S. 

 N. M.); Henderson Co. (U. S. N. M.); near Obey, Richland Co. (U. S. N. M.). 

 Iowa: Burlington, Des Moines Co. (U. S. N. M.). Michigan: Raisin River, 

 Monroe, Monroe Co. (U. S. N. M.). Nebraska: Omaha, Douglas Co. (M. 

 C. Z.); Creighton Creek, south of Niobrara, Knox Co. (U. S. N. M). Colo- 

 rado: Fort Collins, Lorimer Co. (M. C. Z.). 



Knox Co., Indiana, gi\^en as a station for C. diogenes in my Revision of the 

 Astacidae, page 71, should be transferred to C. argillicola, p. 77. 



Cambarus diogenes ludovicianus Faxon. 



New localities: — Frierson, De Soto Co., La.; Rosedale, Bolivar Co., Miss.; 



U. S. N. M.). 



Cambarus argillicola Faxon. 



Ne^v localities: — Olney, Richland Co., 111. (U. S. N. M.); Frierson, De 

 Soto Co., La., in burrows LS inches deep, surmounted by low mud "chimneys" 



(U. S. N. M.). 



Cambarus uhleri Faxon. 



Mr. W. P. Hay captured one specimen of this species near Beaufort, N. C, 

 Aug. 17, 1912. This specimen, a female, was taken from a hole in the bank of a 

 pond on the south side of Adley's Creek, about fourteen miles north of Beaufort. 

 On the other side of the same creek, about a mile away, Mr. Hay collected three 

 specimens of C. diogenes (also females) in holes on the edge of a swamp. The 

 specimen of C. uhleri difTers from the type specimens from Maryland but very 

 slightly, the rostrum being a trifle more concave above, and the foveola at the 

 base of the rostrum rather more pronounced. 



Uhler's Crayfish has heretofore been known only from the tidewater Ocean 

 and Bay counties of eastern Maryland. 



