28 PROCEEDINGS OF THE ACADEMY OF [1897. 



12. Neotoma magister Baird. Allegheny Cave Rat. 



The occurrence of this rat in the Hudson highlands near New 

 Jersey, and in Massachusetts also, has for some years led mammalo- 

 gists to believe that its distribution across the intervening country 

 would be found continuous in favorable localities. Save the dis- 

 covery of their remains in the cave deposits of Monroe County, 

 Pennsylvania, there has been no definite record to my knowledge 

 which would connect their habitat in the Allegheny Mountains with 

 that on the Hudson River. I was informed, however, by a hunter 

 at Delaware Gap, that he knew of such an animal on the Kittatinny 

 Mountain in Warren County. This statement I was unable to ver- 

 ify, owing to my short stay at that place. It is very likely that this 

 rat will also be found on the Kittatinny range near Culver's Gap, 

 but during my visit no exploration of the summits was made. 



Soon after my arrival at Greenwood Lake, I was told by a local 

 sportsman that he had once caught a "wood rat'" on the mountain 

 in a deadfall set for skunks. The summits of Greenwood Mountain 

 at the south end of the lake are made up exclusively of great masses 

 of glaciated conglomerate and shale with perpendicular fissures and 

 steep faults running parallel with the northeast and southwest trend 

 of the range. Chestnut and scrub oaks and dwarfed pines and hem- 

 locks sparingly cover the nakedness of this desolate but picturesque 

 locality. Owing to their perpendicular cleavage, I found the rocks 

 rarely afforded the proper shelter for the abode of the cliff rat, and 

 it was only after nearly two days of climbing that I stumbled upon 

 an escarpment from which the rock masses had so fallen into the 

 gorge as to form a roof. Beneath this, unmistakable signs of the 

 rats were found, and in the two following days an adult male, a very 

 old female and a young male, about two-thirds grown, were secured. 

 These specimens differ in no respects from a series from the Penn- 

 sylvania Alleghenies taken at the same season. They form the first 

 New Jersey record of this interesting native rat. 



13. Mus decumanus Pallas. Norway Rat. 



14. Mus musculus L. House Mouse. 



Specimens of the House mouse were taken. Of the status of the 

 Black Rat, M. rattus, no notes were secured. 



15. Zapus hudsonius (Zimm.). Meadow Jumping Mouse. 



Ten specimens from Lake Hopatcong and three from near Cul- 

 ver's Lake represent this animal. The latter were taken in a wet 



