132 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 



Subgenus Synaptomys Baird. 



* Synaptomys cooperi Baird. 



1857. S\ynaptomys] coo/>m Baikd, Mamm. N. Amer., p. 558. 

 1885. SytKqytomys cooperi True, Proc. U. S. nat. raus., vii 



(1884), p. 596. 1885. 

 Type locality. — Unknown, probably northern New Jersey. 



Synaptomys fatuus Bangs. 



1890. Si/n<:q>t(>mi/s fatuus Bangs, Proc. biol. soc. Washing- 

 ton, X, p. 47. March 9, 1896. 

 Type locality. — Lake Edward, Quebec, Canada. 

 Regarded by Rhoads (Proc. acad. nat. sci. Phila., 1897, p. 306, 

 June, 1897) as a form of S. cooperi. 



Synaptomys helaletes Meniam. 



1896. Synuptomys helaletes Merriam, Proc. biol. soc. Wash- 

 ington, X, p. 59. March 19, 1896. 

 Type locality. — Dismal Swamp, Xorfolk County, Virginia. 

 According to Rhoads (Proc. acad. nat. sci. Phila., 1897, p. 305, 

 June, 1897), this should stand as Synaptomys cooperi stonei 

 (Rhoads) {Synajdornys stonei Rhoads, Amer. nat., xxvii, p. 53, 

 January 11, 1893; ty[)e locality. Mays Landing, Atlantic County, 

 Xew Jersey). 



Synaptomys helaletes gossii Merriam. 



1896. Synaptoniys helaletes gossii Merriam, Proc. biol. soc. ■ 



Washington, x, p. 60. March 19, 1896. 

 Type locality. — Neosho Falls, Woodson County, Kansas. 

 According to Rhoads (Proc. acad. nat. sci. Phila., 1897, p. 307, 

 June, 1897), this should stand as l<>ynap}tomys cooperi yossi. 



Subgenus Mictomys True. 



1894. 3Iictomys True, Diagnoses of new North American 

 mammals, p. 2. April 26, 1894. (Reprint: Proc. U. S. nat. mus., 

 XVII, p. 242. November 15, 1894.) Type. — Mictomys innuitus 

 True. 



