And Synaptomys Stonei. 



101 



South Central New Jersey, I was anxious to see if my specimens 

 were not referable to S. stond Rhoads rather than to S. cooperii 

 For this purpose Dr. 0. Hart Merriam kindly lent me a fine 

 series of fourteen skins and many skulls of S. cooperii, partly 

 from his own private collection, and partly from the collection 

 of the Department of Agriculture at Washington. I also, 

 through the kindness of Mr. S. N". Rhoads, of the Academy of 

 Natural Sciences, Philadelphia, had a chance to examine his type 

 of Synaptomys stonei and a topotype in the collection of Mr. 

 Whitmer Stone, for whom the species was named. 



In the light of this fine material, the specific character claimed 

 for S. stonei faded away to mere individual variation, and S. 

 stonei will have to stand as a synonym of S. cooperii, pure and 

 simple. 



The list of specimens I had to work with is as follows : 



^Collection of E. A. & O. Bangs, Boston, Mass. 

 {Collection of Dr. C. Hart Merriam, Locust Grove, N. J. 

 tCollection of U. S. Department of Agriculture, Washington, D. C. 

 ^Collection of Sam'l N. Rhoads [type of S. Stonei]. 

 1 1 Collection of Whitmer Stone [topotype of S. Stonei]. 

 IfThese measurements taken by collector from fresh animal, all the others 

 were taken by me from dried skin. 



