— 
2. RANA. 37 
Vomerine teeth in two small oblique groups close together, ex- 
tending a little beyond the hinder edge of the choane. Head 
moderate ; snout rounded, with distinct canthus rostralis ; interorbital 
space half the width of the upper eyelid or rather more ; tympanum 
at least as large as the eye, sometimes nearly twice as large, gene- 
rally larger in males than in females. Fingers with blunt tips, 
first not-extending beyond the second ; toes not webbed to the tips ; 
subarticular tubercles of fingers and toes moderate ; a single, small 
metatarsal tubercle. The hind limb being carried forwards along 
the body, the tibio-tarsal articulation reaches nearly the tip of the 
snout. A prominent, narrow, glandular lateral fold, at least on the 
front half of the back. Brown or olive above, more or less spotted 
or marbled with blackish ; beneath, immaculate or marbled with 
grey. Male with two internal vocal sacs. 
K. N. America. 
a. Q. Canada. Sir A. Smith [P.]. 
Ge a New York. 
Gy Gye Philadelphia. 
d. 2. Georgia. 
eS,9- 3. N. America. 
37. Rana septentrionalis. 
Rana septentrionalis, Baird, Proc. Ac. Philad. 1855, p. 51. 
sinuata, Baird, le. 
Vomerine teeth small, between the choane. Habit stout. Tym- 
panum three fourths the size of the eye. Toes not quite entirely 
webbed. Skin porous; a broad, depressed, glandular lateral fold ; 
a branch of same round the tympanum; beneath with scattered 
glandules. Above olive or brown, with lighter vermiculations, and 
with a few large dark blotches posteriorly ; beneath immaculate. 
Canada to Montana. 
38. Rana plancyi. 
? Rana trivittata, Hallow. Proc. Ac. Philad. 1860, p. 505. 
Rana plancyi, Lataste, Le Naturaliste, 1880, p. 210, and Bull. Soe. 
Zool. Fr. 1880, p. 64. 
Vomerine teeth in two slightly oblique groups extending a little 
beyond the hinder edge of the choanz. Snout a little shorter than 
in R. esculenta; tympanum as large as the eye, close to it. Fingers’ 
more slender, pointed ; subarticular tubercles of fingers and toes 
little developed ; inner metatarsal tubercle strong, compressed, rather 
more than half the length of the first toe. Glandular lateral fold 
very much developed, as broad as the upper eyelid. Greyish or 
olive above, uniform or with indistinct dark spots; seldom a light 
vertebral line; a blackish band along the hinder side of the 
thighs ; a similar one, sometimes indistinct, along each side of the 
