392 PROCEEDINGS OF THE ACADEMY OF [1894. 



In a recent paper, Mr. Outram Bangs^ has endeavored to show 

 that Synaptomys stonei described by me from southern New Jersey 

 is a synonym of S. cooperi. 



A comparison of the three specimens of stonei, taken at May's 

 Landing, with individuals taken in New England by Mr. Bangs at 

 the same season of year, show no cranial differences of value. In 

 stonei, however, there is a decided difference in the darker colors of 

 the pelage as contrasted with the New England skins and with the 

 skin from Pike County. This is manifested in the blackish-brown of 

 the back and upper head, the sooty feet and tail, and the lead- colored 

 lower parts of stonei, contrasted with the gray-brown upper parts, 

 light-brown feet and tail, and hoary under parts of the more northern 

 specimens which, as I had previously inferred, were in all prob- 

 ability taken nearest the type locality of cooperi. In these particulars 

 there is a striking correlation with the color differences pointed out 

 by Mr. Stone for his subspecies of Evotomys gajjperi,* taken in the 

 same bog which furnished the types of S. stonei. On these grounds, 

 taking for granted that S. cooperi is typified by the form found east 

 of the Alleghany Mountains, I would now refer to the southern New 

 Jersey lemming mouse as Sy7iapto7nys cooperi stonei. 



My original description of stonei was drawn up from a comparison 

 with two specimens from Ohio, and, so far as it went, was apparently 

 a sufficient reason for specific separation. It is not impossible that 

 a full series of western specimens will yet indicate the propriety of 

 further division. 



19. Zapus hudsonius (Zlmm.)- Meadow Jumping Mouse. 



20. Zapus insignis Miller. Woodlaud Jumping Mouse. 



I was surprised to neither see nor capture any of these mice during 

 my stay. They had evidently just gone into their winter trance, and 

 the loveliest Indian summer weather failed to rouse them. This is 

 an interesting fact, as only a few days before my stay they had been 

 seen by "mine host," and one of the woodland species (which I was 

 surprised to find he recognized as different from the meadow jumping 

 mouse) was killed by him as it swam across the Bushkill. Mr. 

 Shryock took a specimen of insignis on Pocono Mountain in 1893. 



3 Proc. Biol. Soc, Washn.. 1894. 

 * Amer. Naturalist, Jan. 1893. 



