374 Illinois State Laboratoyij of Natural History. 



50. C. viRiLis Hagen. Monog. Astacidse. 63, pi. i, figs. 

 23-28, pi. ii, figs. 128-132, pi. iii, fig. 155, pi. viii (1870).— Jfer- 

 rick. lOth Rep. Geol. Minn. 253 {18^2).— Faxon. Proc. 

 Anier. Acad. 147 (1884); Revision of Astacidse, 96 (1885). 



C. debilis Bandy. Bull. 111. State Lab. N. H., No. 1, 24 

 (1876); Trans. Wisconsin Acad, v, 181 (1882); Geology of 

 Wisconsin, i, 403 (1883). 



C. couesi Streets. Bull. U. S. Geol. Survey (Hayden), iii, 

 803 (1877). 



Hab. — Canada, Dakota, Minnesota, Wisconsin, Iowa, Nebraska, 

 Wyoming, Kansas, Missouri, Illinois, Indiana, Tennessee, Texas, New 

 York? 



FAMILY PALJEMONID^. 

 I. Pal^mON Fabr., Stimpson. 



1. p. OHioNis Smith. Rep. U. S. Fish Com. for 1872-73, 

 MO.— Forbes. Bull. 111. State Lab. N. H., No. 1, 5 (1876).— 

 Hay. Amer. Nat. xvi, 143 (1882). 



Hah. — Indiana, Illinois, Mississippi, Mississippi River. 



II. Pal.^MONETES Heller. 



1. P. PALUDOSA Kingsley. Proc. Phila. Acad. 1878, 97; 

 Bull. Essex Inst, x, 65. 



P. exilii^es Stimpson. Ann. N. Y. Lyceum N. H., x, 130 

 (1871).— .Sm^YA. Rep. U. S. Fish Com. for 1872-73, 641.— 

 Forbes. Bull. 111. State Lab. N. H., No. 1, 5 (1876).— Hf??/. 

 Amer. Nat. xvi, 144 (1882). 



Hipimlyte paludosa Gibbes. Proc. A. A. A. S., iii, 197 

 (1850). 



Hab. — Ohio, Illinois, Michigan, Tennessee, South Carolina, Florida, 

 Mississippi. 



FAMILY PEN^ID^. 



I. Pen^us Latr. 



1. p. BRAziLiENSis Latr. Nouv. Diet, d' Hist. Nat., 154, 

 t. XXY.— Milne-Edwards. Hist. Nat. des Crust, ii, 414 (1837). 

 —Stimpson. Ann. N. Y. Lyceum N. H., x, 132 (1871).— 

 Smith. Rep. U. S. Fish Com. for 1872-73, 642. 

 Hab. — New York, New Jersey. 



