BANGS : LAND MAMMALS OF FLORIDA AND GEORGIA. 187 
elsewhere, but the specimen from Tarpon Springs, can be easily 
matched in color by many skins from both Raleigh, N. C., and 
Gainesville, Fla. 
The two specimens measure as follows: — 
No. 2,240, the type, Rhoads Coll., 9 adult: total length, 118; tail 
vertebrae, 56; hind foot, 15; No. 1,505, Rhoads Coll., from Tarpon 
Springs, Florida, 9 young adult: total length, 116.84; tail vertebrae 
49.53; hind foot, 13.97. These measurements are not particularly 
small, but are about the same as the average of young adults of true 
JR. lecontii from Georgia, Florida, or North Carolina. 1 The ears of 
both the type and the Tarpon Springs specimen, while not measured 
in the flesh, seem smaller than those of more northern examples, but 
this may be due to drying in making the skin. 
It is my opinion that Reithrodontomys only pushes its way into 
southwestern Florida in country not unlike that of the upper Austral 
zone; that is in places where hickory, deciduous oaks, and broom 
grass occur, imparting to the landscape a decidedly Carolinian 
aspect. Stretches of such ground are not uncommon in central and 
southwestern Florida. All the trapping I have done in eastern 
Florida has failed to secure Reithrodontomys there, and it must 
be remembered that Reithrodontomys is easily taken with the 
modern devices for trapping small mammals. It therefore seems to 
me very doubtful if the little harvest mouse living in south western 
Florida has become even subspeciflcally differentiated from true 77. 
lecontii. More specimens are needed from the region around the 
type locality, however, before this can be proved, and for the present 
I include 11. lecontii dickinsoni as a very doubtful subspecies. 
Oryzomys palustris palustris (Harlan). 
Mus palustris Harlan, Amer. jour. sci. and arts, 1837, ser. 1 
vol. 31, p. 385. 
Arvicola oryzivora Aud. and Bach., Quad. N. Amer., 1853, vol. 
3, p. 214. 
Hesperomys ( Oryzomys ) palustris Baird, Mam. N. Amer., 1857, 
p. 482. 
1 See Allen’s list of measurements in “ On the species of the genus Reithroclontomys 
Bull. Amer. mus. nat. hist., 1895, p. 141. 
