THE CRUSTACEA OF NEW JERSEY. 357 



The river crawfish does not make much, if any, of a burrow, 

 but usually hides under stones or in aquatic vegetation. It also 

 does not live in rough rocky streams, but inhabits quiet or tidal 

 fresh waters, where I have often taken it along with killifishes, 

 sunfish and other small fishes. 



A large series of examples before me from Mantua Creek at 

 Mantua, Camden County, Pitman, Burlington, Burlington 

 Island, Florence, Newbold's Island, Duck Island, Trenton and 

 Hurd Cove of Lake Hopatcong. Besides these a large series 

 also from Pennsylvania, as those from the Monocacy and 

 Saucon Creeks at Bethlehem, Tullytown, Bristol, Torresdale, 

 Holmesburg, the Schuylkill at Philadelphia, Abrams, Red Clay 

 Creek near Kennett Square, Edderton, Walnut Hill, the 

 Brandywine below' Chadd's Ford, Ephrata and Gettysburg. In 

 Delaware I secured it east of Iron Hill (Maryland), Shellpot 

 Run and at Claymont. In Maryland I have only found it at 

 Bohemia Mills in Cecil County. I also have examined dry 

 examples from Red Bank, and Harlan's example from the 

 Schuylkill River. 



Cambarus blandingii (Harlan). 



Plates io6 and 107. 

 B landing's Crawfish. 



Astacus blandingii Harlan, Trans. Amer. Philos. Soc. Phila., Ill, 1830, p. 464. 



Camden, South Carolina, and Neiv Orleans, Louisiana. 

 • Harlan, Med. Phys. Res., 1835, p. 229, fig. i. United States marshes 



and rivulets. 



■ De Kay, N. Y. Fauna, Crust., VI, 1844, p. 23 (on Harlan). 



Gibbes, Proc. Amer. Assoc. Adv. Sci., I, 1850, p. 195. (New York and 



Philadelphia collections.) 



Astacus (Cambarus) blandingii Erichson, Arch. Naturgesch., XII, 1846, p. 

 23 (on Harlan). 



Cambarus blandingii Hagen, Mem. Mus. Comp. Zool., Ill, 1870. p. 43, PL i, 

 figs. 63-64, PI. 3, fig. 140 (type). 



— • Faxon, Proc. Amer. Acad. Sci., XX, 1884, p. 135. New Jersey. 



Faxon, Mem. Mus. Comp. Zool., X, 1883-85, p. ig, PL 7, figs. 2, 2', 2' 



2^, 2^'. New Jersey, Essex County, Delaware River and tributaries near 

 Trenton. (New York; Baltimore, Carolina, Dorchester, St. Mary's, 

 Somerset, Wicomico and Worcester Counties, Md., south to Georgia.) 



