358 Illinois State Lahoratory of Natural History. 



FAMILY ORCHESTID.E. 

 I. AlloroHESTES Heller. 

 1. A. DENTATUS Faxoii. Boll. Mus. Comp. Zool., iii, 373, 

 (1876). 



HyaMla dentata Smith. Rep. U. S. Fish Com. for 1872- 

 73, 645, 694; 7th Rep. U.S. Geol. Survey (Hayden), 611 (1874). 

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



?A?nphitoe Aztecus Saussure. Mem. sur divers Crust, nouv. 

 du Mexique et des Antilles, 58 (1858). 



?AUorchestes Knickerbocker i Bate. Cat. Amphip. Crust. 

 Brit. Mus., 36 (1862). 



7/«6.— Maine, Massachusetts, Connecticut, Florida, Illinois, Wiscon- 

 sin, Iowa, Michigan, Nebraska, Colorado, Oregon, Lake Superior. 



Var. iNERMis Faxon. Bull. Mus. Comp. Zool., iii, 373 

 (1876). 



Hyahlla inermis Smith. 7th Rep. U. S. Geol. Survey 

 (Hayden), 610 (1874). 

 Hah. — Colorado {Smith). 



OEDEE ISOPODA. 



FAMILY ASELLID^. 



I. ASELLUS Geoff. 



1. A. BEEViCAUDA Forbes. Bull. Til. State Lab. N. H., 



No. 1,8 (1876). 



Ilah. — Illinois (Forbes). 



2. A. COMMUNIS Say. Jour. Phila. Acad., i, 428 (1817). 

 —DeKay. Nat. Hist. N. Y., vi, 49 {lU4.).Smith. Rep. U. 

 S. Fish Com. for 1872-73, Q51.—Hay. Amer. Nat. xvi, 241 

 (1882). 



?A. vulgaris Gould. Invertebrata of Massachusetts, 337 

 (1841). 



A. militaris Hay. Bull. 111. State Lab. N. H., No. 2, 90 

 (1878). 



iZ'a?*.— Connecticut, Massachusetts, New York, Pennsylvania, Indi- 

 ana, Illinois, Michigan, Mississippi. 



