4 University of Michigan 



Ciimbants ziriUs Hagen. — ^^'l^ite^^^ll Point, Chippewa 

 County, ^Michigan, July 12 and August 6, 1912; Beaumaris, 

 Muskoka Lakes, Ontario, July 20, 1903. 



Cambants diogcnes Girard. — The northern range of this 

 species has l)een extended in the State <it Michigan b}' its dis- 

 covery at Whitefish Point by the vShiras Expedition, and 

 through collections made by Professor Frank Smith at Douglas 

 ■Lake in Cheboygan County. 



Cainharus iimnidiis Hagen —Three specimens were col- 

 lected near Littleton. Colorado, and in the reservoir at Fort 

 Logan, Englewood, Colorado, September 3, 1912, by Peter 

 (Jkkelberg. 



Cambants iinnniiiis spinirostris Faxon. — Put-in-Bay, Ohio, 

 July 14, 1899; Long Point Creek, Canada, August 18, 1899; 

 Omaha. Nebraska, June 10, 1913 (five young). 



Potamobius irowbridiiH (Stimpson). — One male, taken at 

 Cheney, A\'ashington, July, 1905, by R. H. J^ohnson. 



Pnlaciuoncfes c.vHipcs Stimpson. — There are specimens in 

 the Museum that were collected by the L^nited States Fish 

 Commission, in 1899, at the following places along the shores 

 of Lake Erie: Put-in-Bay; East Pond, Rondeau Harbor, 

 Ontario. Canada ; near Sandusky, Ohio ; Big Pond, Erie, 

 Pennsylvania. 



STO.\rAT0P0DA. 



Pscudosqiiilla !csso)iii (Cuerin). — One specimen taken in 

 False l-5ay, San Diego, California. July iS.. 1908. l)y C. S. Cass.. 



