356 Illinois State Laboratory of Natural History. 



OEDER AMPHIPODA. 



FAMILY GAMMARID^. 



I. Orangonyx Bate. 



1. C. ANTENNATUM Packard. Amer. Nat. xv, 8S0 (1881). 

 //«/>.— Tennessee (Packard). 



2. C. BiFURCUS Hay. Amer. Nat. xvi, 144 ( 1882). 



Hah. — Mississippi {Hay). 



3. C. GRACILIS Smith. Amer. Jour. Science, 3rd ser., ii, 

 453 (1871); Rep. U.S. Fish Com. for 1872-73, 654,694.— 

 Forbes. Bull. 111. State Lab. N. H. No. 1, 6 {181Q).— Hay. 

 Amer. Nat. xvi, 241 (1882). 



Hah. — Indiana (Hay), Illinois (Forhes), Lake Superior ai'd Lake 

 Huron (Smith). 



4. C. LuciFUGUS Hay. Amer. Nat. xvi, 144 (1882). 

 Hah. — Illinois (Hay). 



5. C. MUCRONATUS Forbes. Bull. 111. State Lab. N. H., 

 No. 1, 6 {imQ).—Hay. Amer. Nat. xvi, 241 (1882). 



Hab. — Indiana (Hay), Illinois (Forbes). 



6. C, Packardii Smith. Amer. Jour. Science, 3rd ser., 

 ix, 476-7 (1875). 



C. vitreus Packard. 5th Rep. Peabody Acad. Science, 95 

 (1873). 



Hab. — Indiana (Packard). 



7. C. TENUIS Smith. Rep. U. S. Fish Com. for 1872-73, 

 656. 



Hah. — Connecticut (Smith). 



8. C. VITREUS Smith. Rep. U. S. Fish Com. for 1872-73, 

 656; Amer. Jour, Science, 3rd ser., ix, 476-7 (1875). 



Stygobromus vitreus Cope. Amer. Nat. vi, 422 (1872); 

 3rd and 4th Rep. Geol. Indiana, 181 (1872). 

 Hab. — Mammoth Cave, Kentucky (Cope). 



II. Gammarus Fabr. 



1. G. APPENDicuLATUS Say. Jour. Phila. Acad, i, 379 

 (1817).— DeA^a^. Nat. Hist, n" Y., vi, 37 (1844). 

 Hah. — Georgia (Say). 



