MICROTUS. SYNAPTOMVS. 203 



303. alleni. {Neojiber), True, Science, 1884, iv, p. 347. Id. Proc. 



U. S. Nat. Mus. Wash., 1884, p. 170. 



Type locality. Georgiana, Merrill's Island, Brevard counly, 

 Florida. 



Geogr. Distr. Easlern Florida, from Indian River on the north 

 to Eden on the south, and to Gainesville in the interior. The limits 

 of this species are not exactly known, and they may be beyond the 

 boundaries named. 



Genl. Char. Those of the genus. Size large; hind feet mod- 

 erate, not equaling twice the length of the fore feet; soles naked, 

 smooth, narrow; toes not inclined laterally at an angle with the soles; 

 only slightly webbed; tail round, tapering gradually to the tip. Pal- 

 ate very short. 



Color. Above rufous lined with black, hairs lead color at base; 

 head darker: base of hairs behind shoulders, while; beneath light 

 rufous, lead color at base of hair; chin, throat, inside of legs, white 

 or tinged with rufous. Tail and feet dark brown. Young, maltese 

 inclining to blackish on the back, pale plumbeous beneath. 



Meiisurements. Total length, 327; tail vertebra;, 125; hind 

 foot, 39. 



54. Synaptoiiiys. 



I. i=.'; M. ^ = l6. 

 i-i' 3-3 



C. H. Merriam, Revision of the genus, Synaptomus, Proc. Biol. Soc. 

 Wash.. 1896, pp. 56-64. 



Synaptomys. Baird, N. Am. Mamm., 1857, p. 558. Type 5. eooperi, 

 Baird. 

 Inferior molars with well defined enamel loops on outer side; 

 superior incisors longitudinally grooved on outer edges; posterior end 

 of palate without median projection. 



A. Synaptomys. 



304. cooperi. (Synaptomiis), Baird, Mamm. N. Am., 1857, p. 558. 

 s!i'>!c-i, Rhoads, Amer. Nat., 1893, p. 53. 



'I'ype locality. Unknown. Southern New York or northern New 

 Jersey? 



Geogr. Distr. Eastern Massachusetts to Minnesota, south to 

 North Carolina, Tennessee, Indiana, Iowa. Boreal and Transition 

 Zones. 



Genl. Char. Similar in appearance to Microtus pennsylvanicus, 

 but tail much shorter. 



