Described Species of Fresh Water Crustacea. 357 



2. G. FASciATUS Say. Jour. Phila. Acad, i, 379 (1817).— 

 DeKatj. Nat. Hist. N. Y. vi, 37 (1844).— 5 w/^//. Rep. U. S. 

 Fish Cora, for 1872-73, Q^Z.^Forhes. Bull. 111. State Lab. N. 

 H., No. 1, 6 (1876). 



Ilab. — Maine {Verrill), Connecticut {Smith), Pennsylvania {Say), 

 Illinois (Forbes), Michigan (Miher), Wisconsin [VerriiJ). 



3. G. LiMNmis Smith. Rep. U. S. Fish Com. for 1872-73, 

 651, 694; 7th Rep. U. S. Geol. Survey (Hayden), 609 (1874). 



G. lacustris Smith. Amer. Jour. Science, 3rd ser., ii, 453 

 (1871). 



Hab. — Michigan, Lake Superior and Colorado (Smith). 



4. G. MINUS Say. Jour. Phila. Acad, i, 374 (1817).—/)?- 

 Kai/. Nat. Hist. N. Y. vi, 37 {lSU).—aoul(I. Invertelmita 

 of Massachusetts, 334 (IS^l).— Smith. Rep. U.S. Fish Com. 

 for 1872-73, 654. 



fToft.— New York(?). 



5. G. KOBUSTUS Smith. 7th Rep. U.S. Geol. Survey (Hay- 

 den), 610 (1874). 



Jlah. — Colorado {Smith). 



FAMILY LYSIANASSID^. 



I. PONTOPORBIA KroYEK. 



1. P. FiLicoRNis Smith. Rep. U. S. Fish Com. for 1872 

 -83, Q^9.— Forbes. Bull. HI. State Lab. N. H., No. 1, 20 

 (1876). 



Gammarus filicornis Stimpson MSS. 

 Hab. — Lake Michigan (Stimpson). 



2. P. HoYi Smith. Rep. U. S. Fish Com. for 1872-73, 

 647, QU.— Forbes. Bull. 111. State Lab. N. H., No. 1, 20 

 (1876). 



P. affinis Smith. Amer. Jour. Science, 3rd ser., ii, 452 

 (1871). 



Gammarus Hoiji Stimpson MSS. 

 Gammarus brecistylus Stimpson MSS. 

 ITab.— Lake Michigan (Stimpson), Lake Superior (Smith). 



