348 REPORT OF NEW JERSEY STATE MUSEUM. 



ter. As he orig-iiially came from a brook he no doubt enjoyed 

 this constant flow of water as something hke his old home. A 

 crawfish taken from Willow Brook, S'taten Island, on September 

 13th, 1896, shed his shell a few days later." 



Though abundant in Pennsylvania, I have seen but few New 

 Jersey examples, and it seems to have been recorded in the latter 

 from but three localities, as Schooley's Mountain, Trenton and 

 Princeton. 1 have examined examples from Trenton and 

 Schwartzwood Lake. In Pennsylvania I have found it com- 

 mon in many places, as Hulmeville, Schuylkill River at Philadel- 

 phia, Holmesburg, Gladwynne, Germantown, Abrams, tribu- 

 taries of Darby Creek, North Branch of Langford's Run, Bustle- 

 ton, Schuylkill River opj)osite Lafayette and Mill Creek in Mont- 

 gomery County. Wycombe, Emporium, Wawa, Trout Run in 

 Delaware County, Chester County, Sandy Run in Philadelphia, 

 brooks in Fairmount Park, Sugar Valley Run at Newton Hamil- 

 ton, W^opsonomick Creek in Blair County, Lakemont Run 

 and Altoona. In Maryland I have found it in a small tributary 

 of the Elk River near Bacon Hill, in Cecil County. In Dela- 

 ware I have it from Greenville, Newcastle County and a dried 

 female, likel}- from near Newark? 



Cambarus diogenes Girard. 



Plates 102 and 103. 



Cli ini 11 cy Craz^'fish . 



Cambarus diogenes Girard, Proc. Acad. Nat. Sci. Phila., 1852, p. 88. 

 Near Washington, D. C. 



Faxon, Proc. Amer. Acad. Sci., XX, 1884, p. 144. New Jersey. 



Abbott, Amer. Nat., XVIII, 1884, p. 1157. New Jersey. 



Faxon, Mem Mus. Comp. Zool., X, 1885, p. 71. Mercer county, New 



Jersey. (Derry, Pa.; Baltimore Co., St. Mary Co., Caroline Co., Dorches- 

 ter Co., Worcester Co., "Deer Park in Garrett Co.", Md. ; Washington, 

 D. C. : south to North Carolina, we«t to Wisconsin, Wyoming, Louisiana.) 



Faxon, Proc. Acad. Nat. Sci. Phila., 1885, p. 359. (Washington, 



D. C.) 



— Underwood. Bull. 111. State Lab. N. Hist., 11. 1886, p. 368. New 



Jersey (Maryland, District of Columbia, Virginia). 



Faxon, 1. c, 1890, p. 624. (Prince William county, Va.) 



