62 REPORT OF NEW JERSEY STATE MUSEUM. 



Mr. Rhoads tells us that they were exterminated in the Green- 

 wood Lake region in 1890, and in 1902 he failed to find them at 

 Culver's Lake and Long Pond. 



Lepus americanus virginiamis Rhoads, Mam. of Pa. and N. 

 ]., 1903, p. 118. 



Lepus americanus Rhoads, Proc, Acad. ISTat. Sci. Phila., 1897, 

 P- 25. 



Family ERETHIZONTID^. 



Porcupines. 



Genus ErEThizon Cuvier. 



Erethizon dorsatus (Linnaeus). 



Canada Porcupine. 



Plate 18. 



Length, 28 inches. Dark brown or nearly black, quills tipped 

 with yellowish, two to four inches long, more or less covered by 

 the hair, which reaches a length of six inches. Toes, four on the 

 front feet and five on the hind. 



This curious beast of the north woods, like the varying hare, 

 is being driven back by the advance of the lumberman, and is 

 already a thing of the past in many a spot where it formerly 

 abounded. 



The northern mountains of New Jersey were at one time in- 

 habited by porcupines, but the animal is now extinct in the State 

 so far as we know, although Mr. Rhoads thinks it may occa- 

 sionally cross the Delaware from Pike county in Pennsylvania 

 (Mammals of Penna. and N. J., p. 116). 



Brethizon dorsatum Rhoads, Mam. Pa. and N. J., 1903, p. 114. 



Family ZAPODID.ffi:. 



JUMPING MICE. 



These curious little mouse-like creatures differ from all of our 

 true mice in the coarseness of their fur and in the immensely long 

 tail and hind legs which adapt them for the wonderful jumping 

 that characterizes them. 



