CAMBARUS. 71 



by the apposition of the branchio-cardiac lines. The few (four) specimens 

 which I have seen come from the Appalachian Mountain region of Virginia 

 and West Virginia. According to Mr. Uhlcr, it makes mud chimneys like 

 C. Di<i</cncs, which it seems to represent in the mountain regions, C. Diogenes 

 belonging to the lowlands. 



26. Cambarus Diogenes. 



Cambana 7%/,w,v. GIRARD, Proc. Acad. Nat. Sci. Phila., VI. 88, 1852. 



Cumbarus obents, UAGEN, 111. Cat. Mus. Comp. Zool., No. III. p. 81, PI. I. figs. 39-42, PI. III. fig. 163, PI. 



IX., 1870. 

 Cambarws obesw, SUITII, Rep. U. S. Comm. Fish ami Fisheries for 1872 awl 1873, p. 639, 1874. (After 



llagcn. No description.) 



Cn,,iliii,-iix uhrx/ix, FOHBES, Bull. 111. Mus. Nat, Hist., No. I. pp. 5, 19, 1876. 

 ( ambaru* obesus, BrxiiT, Prnc. Acad. Nat. Sci. Phila., 1877, p. 171. Trans. Wis. Acad. Sci., V. 183, 1882. 



( teol. \Vis., Sun. 1X73-1879, I. 403, 1883. (No description.) 

 (.'iiniliiifiis lUiii/i'iii's, FAXOX, Proc. Amer. Acad. Arts and Sci., XX. p. 144, 1884. 

 Cambarus Dioijencs, var. Luiluvlciana, FAXON, Proc. Amer. Acad. Arts and Sci., XX. p. 144, 1884. 



Localities. New Jersey : Mercer Co. Pennsylvania : Derry Sta- 

 tion, Westmoreland Co. Maryland : Baltimore Co. ; St. Mary Co. ; Caroline 

 Co. (Coll. P. E. Uhler) ; Dorchester Co. (Coll. P. R. Uhler) ; Worcester Co.; 

 Deer Park, Garrett Co. (Coll. P. R. Uhler). District of Columbia : near Wash- 

 ington. Virginia : Alexandria Co. ; Accomack Co. ; Northampton Co. ; Fred- 

 ericksburg ; Petersburg. North Carolina: Wilmington (Coll. U. S. Nat. Mus.) ; 

 Kinston (Coll. U. S. Nat. Mus.). Ohio: Kelley's Island, Lake Erie (Peabody 

 Acad. Sci.). Indiana : Long Lake, Kendallville, Noble Co. (Bundy) ; Mechanics- 

 burg, Henry Co. (Bundy) ; Knox Co. (Coll. U. S. Nat. Mus.). Illinois: Lawn 

 Ridge ; Evanston ; Belleville ; Decatur ; Chicago ; Abingdon (Coll. L. A. Lee 

 and B. F. Koons). Michigan : Detroit. Wisconsin : tributaries of Pecatonica 

 River, Green Co. ; Appleton (Coll. Butler U.niv.) ; Racine (Coll. Acad. Nat. 

 Sci. Phila,). Iowa : Davenport. Missouri : Carroll Co. (Coll. Bost. Soc. Nat. 

 Hist.) ; St. Louis (Coll. Berlin Mus., ieste Hagen). Kansas: Leavenworth. Colo- 

 rado : Clear Lake. Wyoming : Cheyenne. Arkansas. Kentucky : near Louis- 

 ville? Mill Branch, near Bee Spring, Edmonson Co.? Mississippi: Monticello, 

 Lawrence Co. Louisiana : New Orleans. 



The labels of specimens, probably types, of C. Diogenes and C. propinqims, 

 in the Philadelphia Academy have been transposed accidentally, so that Dr. 

 Hagen failed to see the identity of the former and his own C. obcsus. Girard's 

 diagnosis is too incomplete to be of much value, although his account of 



