American Species of Rana, 413 
3. Rana septentrionalis, Baird, 1855. 
R. sinuata, Baird, 1855, 
Southern Canada and New York to Montana and Utah. 
4. Rana clamitans, Daud., 1801. 
R, clamata, Daud., 1803.—R. fontinalis, Leconte, 1825.—R. flavi- 
viridis, Harl., 1825.—R. horiconensis, Holbr., 1842.—R. nigricans, 
Agass., 1850.—R. nigrescens, clamator, Leconte, 1855.—R. clamitans 
melanota, Rhoads, 1895, 
North America, east of the Rocky Mountains, from 
Canada (Quebec, Ontario) to Florida and Louisiana. 
5. Rana onca, Cope, 1875. 
R. draytoni onea, Cope, 1889.—R. fischert, Stejneg., 1893. 
Utah and Nevada. 
6. Rana virgatipes, Cope, 1891. 
New Jersey (Atlantic City and Lakehurst) and North 
Carolina (Lake Hllis). 
7. Rana montezume, Baird, 1855. 
RK. adtrita, Troschel, 1865,—R. montezume concolor, Cope, 1887, 
Plateau of Mexico, Tabasco, Tehuantepec. 
8. Rana halecina, L., 1766 *. 
R. pipiens, Schreb., 1782.—R, utricularia, Harl., 1825.—R. oxyrhyn- 
chus, Hallow., 1856. — R. berlandiert, Baird, 1859.— R. forreri, 
Bouleng., 1883.—. virescens, Garm., 1884.—R. halecina spheno- 
cephala, brachycephala, austricola, Cope, 1886.—? R. trilobata, 
Mocquard, 1899.—&. omiltemana, Giinth., 1900. 
North America as far north as 52°, not extending west of 
the Sierra Nevada, Mexico and Central Ainerica as far 
south as Costa Rica. Up to 8000 ft. altitude in Colorado, 
8500 ft. in Mexico, 5000 ft. in Costa Rica. 
It may be possible to define three principal varieties : 
sphenocephala, Cope, forreri, Blgr., and austricola, Cope 
(lecontu, Gthr., Brocchi, nigricans, Brocchi). —* 
* This name, latinised by Linneus from Kalm’s ‘ Sillhoppertosser,’ 
appears in the synonymy of R, ocellata. 
