136 PROCEEDINGS OP THE AMERICAN ACADEMY 



Cambarus Blandingii, Hagen, 111. Cat. Mus. Comp. Zool., 

 No. III. 43, PI. I. figs. 63, 64, PI. III. fig. 140. 1870. 



Cambarus acutus, var. B, Hagen, op. cit., p. 36, PI. III. fig. 

 144. 1870. 



Cambarus acutus, Abbott, Amer. Nat., VII. 80. 1873 (habits). 



Hab. New Jersey, Maryland, Virginia, North Carolina, South 

 Carolina, Georgia. 

 a. Var. acuta. 



Cambarus acutus, Girard, Proc. Acad. Nat. Sci. Phila., VI. 

 91. 1852. 



Cambarus acutissimus, Girard, I. c. 



Cambarus acutus, Hagen, op. cit., p. 35, PI. I. figs. 1-5, 

 PI. II. figs. 106, 108, 110-114, 116, 118, 120-124, 126, 127, 

 PI. III. fig. 143. 1870. 



Cambarus acutus, var. A, Hagen, op. cit., p. 36, PI. II. figs. 

 107, 109, 115, 117, 119, 125. 



Cambarus acutus, Forbes, Bull. 111. Mus. Nat. Hist., No. I. 

 pp. 3, 18. 1876. 



Hab. Louisiana, Mississippi, Alabama, South Carolina, Tennes- 

 see, Missouri, Illinois, Indiana, Iowa, Wisconsin. 



2. Cambarus fallax. 



Cambarus fallax, Hagen, op. cit., p. 45, PI. I. figs. 103-105. 

 1870. 



Hab. Florida. 



3. Cambarus Hati. 



Cambarus Hayi, Faxon, supra, p. 108. 

 Hab. Mississippi. 



4. Cambarus Clarkii. 



Cambarus Clarkii, Girard, op. cit., p. 91. 1852. 

 Cambarus Clarkii, Hagen, op. cit., p. 39, PI. I. figs. 7-10, 

 99, 100, PI. II. figs. 133, 134, Pl.'III. fig. 142, PI. IV. 1870. 

 Hab. Texas, Louisiana, Mississippi, Alabama, Florida. 



5. Cambarus troglodytes. 



Astacus troglodytes, Le Conte, op. cit, p. 400. 1 855. 

 Astacus fossarum, Le Conte, op. cit., p. 401. 1855. 

 Cambarus troglodytes, Hagen, op. cit, p. 41, PI. I. figs. 11-14, 

 PI. II. fig. 141. 1870. 



Hab. Georgia, South Carolina. 



Note. — Girard and Gibbes confounded this species with C. Blandingii. 

 Gibbes distributed specimens of C. troglodytes under the name of Astacus Blan- 



