176 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
When Dr. Merriam wrote his monographic revision of the pocket 
gophers (Geomyidae), he had comparatively few specimens from 
Florida and Georgia. I have made particular efforts to fill this 
want of material and now have a series of nearly 300 specimens of 
Geomys from eastern Georgia and Florida. This ample material 
has enabled me to distinguish three additional forms from this 
region. 
None of the forms of the tuza group show any tendency to mel¬ 
anism, so common among some of the other species of Geomys. In 
my large series from Georgia and Florida there is not a single indi¬ 
vidual that is even slightly melanistic. 
Mr. Brown collected twenty-six specimens of G. tuza tuza at 
Hursman’s Lake (Savannah Iiiver); forty-three at Adam; four at 
Pinetucky; eleven at Doctortown; and twenty at Sterling, Georgia. 
He saw colonies along the line of the Georgia Central R. R. 
between Augusta and Savannah at Allen, Bennocks, McBean, 
Thomas, Munnerlyu, Perkins Station, Lawtonville, Millen, 'Scar- 
boro, Rocky Ford, Ogeecliee, Dover, Cameron, Halcyon Dale, 
Guyton, Marlow, and Maldrim, the last colony being about fifty 
miles from Savannah. 
Geomys florid anus florid anus (Aud. and Bach.). 
Pseudostoma floridana Audubon and Bachman, Quad. N. Amer., 
1854, vol. 3, p. 242-245. 
Geomys tuza floridanus Merriam, N. Amer. fauna, 1895, no. 8, 
p. 115. 
Type locality. St. Augustine, Florida. 
The Florida “ salamander ” ranges from the Florida side of the 
St. Mary’s River south through all eastern Florida to Eau Gallie. 
In central Florida, at Orlando, Gainesville, etc., it begins to shade 
into the light colored form which occupies the western part of the 
peninsula. The large colony at Eau Gallie, that occupies the exten¬ 
sive white sand ridges about the town, is, I believe, the most southern 
colony of any size, although I have heard of its hills being seen even 
south of Micco. 
Apparently G. floridanus typicus does not intergrade with G. 
tuza typicus anywhere, and I fancy the big Okefinokee Swamp, 
drained on the east by the St. Mary’s River and on the west by the 
Suwannee River, makes of peninsular Florida an island so far as 
