BIOLOGIA CENTRALI-AMERICANA. 
ZOOLOGIA. 
Class BATRACHIA. 
Division BATRACHIA SALIENTIA. 
Fam. RANIDA. 
RANA. 
Rana, sp., Linn. Syst. Nat. i. p. 354; Bouleng. Batr. Sal. p. 7. 
Ranula, Peters, MB. Ak. Wiss. Berlin, 1859, p. 402. 
Pohlia, Steind. Reise der Novara, Amphib. p. 15. 
Trypheropsis, Cope, Proc. Ac. N. Sc. Philad. 1868, p. 117. 
Tongue deeply notched behind; vomerine teeth. Fingers free; toes webbed, 
without adhesive disks; outer metatarsals with a distinctly developed web between 
them. Omosternum and sternum with a bony style. 
1. Rana montezume. 
Rana montezume, Baird, Proc. Ac. N. Se. Philad. 1855, p. 61; Girard, U. S. Mex. Bound. Surv., 
Rept. p. 27, t. 36. figg. 1-6 ; Brocchi, Miss. Sc. Mex., Batr. p. 14, t. 4. figg. 2,2 a,b; Cope, 
Bull. U.S. Nat. Mus. no. 32, p. 19; Bouleng. Batr. Sal. p. 35; Dugés, La Naturaleza, 2 ser. 
i. p. 137 (1888). 
Rana adirita, Troschel, in Miiller’s Reisen in den Verein. Staat. etc. iii., Wirbelth. p. 82 (1865). 
Hab. Mexico, city of Mexico (Doorman), Guanajuato (Dugés), Lake of Texcoco 
(Godman), ‘Tehuantepec (Sumichrast), Tabasco (Berendt); Guatemana (Cope). 
Form robust; snout rather short and wide, in front and ow the sides sloping towards 
the labial margin, with very indistinct canthus rostralis; loreal region not concave. 
Tympanum as large as the eye. Vomerine teeth in two short transverse straight 
groups, on a level with the hind margin of the echoane. ‘Toes not enlarged at the tips, 
broadly webbed, the web extending to the last phalanx of the fourth.toe. A short, 
narrow, inner metatarsal tubercle. ‘The first finger very little longer than the second. 
BIOL. CENTR.-AMER., Batr., February 1900. *26 
