932 MONOGRAPHS OF NORTH AMERICAN RODENTIA. 
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nedy bone-cave, Montgomery County, Pennsylvania. These remains indicate 
a species much larger than S. panolius Cope, and agreeing in size with S. 
hudsonius, to which it seems not unlikely referable. 
SCIURUS PANOLIUS Cope. 
Sciurus panolius Cope, Proc. Amer. Phil. Soe. xi, 1869, 174, pl. iii, fig. 5. 
This species is based on a portion of a mandibular ramus ‘‘containing 
two molar teeth, and the included portion of the incisor, the coronoid and 
vertical ramus being lost”. It is from the caves of Wythe County, Virginia. 
This fragment indicates a species about two-thirds the size of Sciwrus hud- 
sonius, and appears to differ considerably in other respects from the corre- 
sponding portion of the lower jaw of S. hudsonius. While its size is that of 
Tamias striatus, it is a true Sciurus, and the smallest species of the genus 
thus far known from North America. 
SCIURUS RELICTUS Cope. 
“ Paramys relictus Corn, Synop. New Vert. of Colorado, 1873, 3.” 
Sciurus relictus Cope, Ann. Rep. U. 8. Geol. Sury. Terr. for 1873 (1874), 475. 
“Size that of the Chickaree (Sciwrus hudsonius).” Described from ‘two 
left mandibular rami, with all the teeth complete”. Said to ‘not differ in 
any degree from corresponding parts of the existing Squirrels”. Found in 
the ‘Tertiary of Colorado”, the exact locality not being given. 
TAMIAS LAVIDENS Cope. 
Tamias levidens COPE, Proc. Amer. Phil. Soc. xi, 1869, 174. 
This species, described from ‘the distal half of a mandibular ramus”, 
with the first molar teeth in place, is too imperfectly known to enable one to 
say much respecting its character or affinities. Its size seems to have been 
that of 7. s¢rzatus, from which species it, however, differs in several important 
particulars. In TZ. devidens, the first lower molar has two anterior cusps, as 
in T. lateralis and T. asiaticus var. quadrivittatus, instead of the single one 
seen in J. striatus and T. harrisi. The portion of the ramus anterior to the 
molars is also slenderer than in JT. séviatus, and the incisors lack the fine stri- 
ations of the anterior surface seen in the last-named species, but have ‘three 
narrow grooves on the outer longitudinal angle”. From the bone breccias of 
caves, Wythe County, Virginia. 
