LEPTODACTYLUS. 213 
2. Leptodactylus albilabris. 
Cystignathus albilabris, Giinth. Ann. & Mag. N. H. 1859, iv. p. 217. 
Cystignathus labialis, Cope, Proc. Am. Phil. Soc. xvii. p. 90; xviii. p. 269. 
Leptodactylus caliginosus, Brocchi, Miss. Sc. Mex., Batr. p- 87, t. 5. fig. 1 (nec Girard). 
Leptodactylus labialis, Brocchi, ibid. p. 20. 
Leptodactylus albilabris, Bouleng. Batr. Sal. p. 245, t. 16. fig. 4. 
Hab. Mexico, Cordova and Tehuantepec (Sumichrast).—AntiLLEs, St. Thomas, Sta. 
Cruz. 
Vomerine teeth in two transverse series behind the choane. Snout rather pointed 
and projecting beyond the mouth, with the canthus rather obtuse. Tympanum more 
than one-half the size of the eye. Toes not fringed; thighs short. Two metatarsal 
tubercles; a tarsal fold. Skin smooth or with a few small tubercles, a glandular fold 
on each side of the back; a ventral disk formed by transverse folds. Brownish or 
blackish, with darker markings; a blackish stripe along the canthus, and a white one 
along the upper lip. Limbs cross-banded; hinder side of the thigh with a series of 
white spots. 
5. Leptodactylus fragilis. 
Cystignathus fragilis, Brocchi, Bull. Soc. Philom. i. p. 182 (1877). 
Cystignathus gracilis, Cope, Proc. Am. Phil. Soc. 1869, p. 162; xviii. 1879, p. 269; Bull. U.S. 
Nat. Mus. no. 32, p. 17 (1887) (nec Dum. & Bibr.). 
Leptodactylus fragilis, Brocchi, Miss. Sc. Mex., Batr. p. 19, t. 5. fig. 2; Bouleng. Batr. Sal. p. 241. 
Hab. Mexico, Tehuantepec and Vera Cruz (Sumichrast). 
Vomerine teeth in two transverse (arched?) series behind the choane. Tympanum 
nearly as large as the eye. ‘Two metatarsal tubercles. Toes not fringed. Sides with 
a glandular fold and with tubercles. Brownish above, with black spots. 
4, Leptodactylus microtis. 
Cystignathus microtis, Cope, Proc. Am. Phil. Soe. xviii. p. 265 (1879). 
Leptodactylus microtis, Bouleng. Batr. Sal. p. 244; Cope, Bull. U.S. Nat. Mus. no. 32, p. 17 (1887). 
Hab. Mexico, ? Guanajuato (Dugés). 
Vomerine teeth in two short transverse series behind the choane; snout not elongate, 
without canthus. Eye not large, and tympanum only two-fifths of its diameter. Limbs 
stout, especially the femur; toes not fringed. Skin without glandular folds on the 
sides. Dark brown, with a blackish, pale-edged triangle between the eyes, the apex 
pointing backwards. No light stripe on the upper lip. (After Cope.) 
Length of body . . . . 1 1 ew we ee ee) 028 milli. 
» hindleg . . 2. 2. we we ee ee ee 88 Os, 
7” hind foot, . . 2. 2. 1 1 we ee eee RO, 
BIOL, CENTR.-AMER., Batr., April 1900. #28 
