2. RANA. 41 
male is provided with an external vocal vesicle behind each angle 
of the mouth. Upper part of each flank with a well-marked row of 
pores, which does not exist in R. halecina. 
United States. 
42, Rana areolata. 
Rana areolata, Baird § Gir. Proc. Ac. Philad. 1852, p. 173; Baird, 
U.S. Mex. Bound. Surv. pl. 36. f. 11, 12. 
Appears to be closely allied to 2. halecina and utricularia, but the 
head is larger and the spots of the back are smaller and more 
numerous. Male with an external vocal vesicle on each side behind 
the angle of the mouth. 
South of North America. 
43, Rana hafecina. 
Rana halecina, Giinth. Cat. p. 13. 
Rana halecina, Kalm, Iter Amer. iil. p. 46; Daud. Rain. p. 63, and 
Rept. viii. p. 122; Merr. Tent. p. 175; Holbr. N.-Amer. Herp. i. 
p- 89, pl. 18; Tschudi, Batr..p.79; Dum. & Bibr. p. 352; Dekay, 
N. Y. Faun., Rept. p. 62, pl. 22. f. 60; Cooper, U. S. Expl. Surv. 
xil. part ii. pl. xxix. f. 1; Brocchi, Miss. Sc. Mex., Batr. p. 10. 
virginiana, Law. Syn. Rept. p. 31. ; 
—— pipiens, Gmel. S. NV. iii. p. 1052; Donnd. Zool. Beitr. iii. p. 51; 
Schreb. Naturf. xviii. p. 182, pl. 4; Shaw, Zool. iii. p. 133; Schneid. 
Hist. Amph. p. 105, pl. 32; Leconte, Proc. Ac. Philad. 1855, 
os 
—— palustris, Guérin, Iconogr. Rept. pl. 26. f. 1. 
—— oxyrhynchus, Hallow. Proc. Ac. Philad. 1856, p. 142. 
Vomerine teeth in two scarcely oblique groups between the 
choane. Head moderate; snout rather pointed; interorbital space 
half as broad as the upper eyelid; tympanum distinct, nearly as 
large as the eye. Fingers moderate, first extending beyond second ; 
toes not quite webbed to the end; subarticular tubercles of fingers 
and toes well developed; inner metatarsal tubercle very small, 
blunt; no outer one. 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. Olive or 
greyish brown above, with regular oval or rounded dark-brown, 
light-edged spots; legs cross-barred; beneath immaculate. Male 
with two little-developed internal vocal sacs, 
North and Central America. 
a-b. Ye. Lake Winnipeg. Sir J. Richardson [P.]. 
ce. 9. Canada. Sir A. Smith [P.]. 
d-e. 9. United States. Smithsonian Institution. 
Op N. America. Lord Ampthill. 
g. 2, skeleton. N. America, Edward Doubleday, Esq. 
Ble 
Weis : Mexico. LP] 
-k. Q. . Coban. 
