MEXICAN TAILLESS AMPHIBIANS 171 



tion has since been confirmed by Dr. E. R. Dunn, who has reexamined 

 the cotypes of H. godmani in the British Museum of Natural History. 

 Dunn reports that he was unable to distinguish Giinther's species, 

 and my own subsequent comparisons resulted in the same conclusion. 



One of the cotypes of H. godmani (B.M. No. 1901. 12. 19. 96) was 

 collected at Misantla in Vera Cruz in June, 1888, and was presented 

 by F. D. Godman. It is described in my notes as follows: Head- 

 and-body length, 36.5 mm.; transverse diameter of tympanum, 1.7 

 mm.; transverse diameter of eye, 4 mm.; anterior edge of eye to 

 nostril, 3.3 mm.; width of head at level of posterior angles of jaws, 

 13 mm.; the hind limb being carried forward along the body, the 

 tibio-tarsal joint reaches to end of snout; toes four-fifths webbed, the 

 last phalanx of fourth toe free; a long tarsal fold from inner meta- 

 tarsal tubercle to tibio-tarsal joint; tip of first finger barely reaches 

 to apical disk of second; fingers one-third webbed; abdomen and 

 under surface of thighs coarsely areolate; vomerine teeth in slightly 

 oblique, posteriorly converging rows, between the choanae. 



The remaining eight cotypes of H. godmani (B.M. Nos. 1901. 12. 

 19. 88-95) came from Jalapa in Vera Cruz, and were likewise presented 

 by F. D. Godman. This series ranges in head-and-body length from 

 25 mm. to 38.3 mm. In alcohol they are quite variable in color, the 

 following varieties being noted: Uniform gray; gray with black specks; 

 purplish gray with white specks; purplish gray with lighter blotches; 

 reddish purple with darker confluent marks; brownish with black 

 specks; and purplish brown. In case of the largest individual, the 

 hind limb being carried forward along the body, the tibio-tarsal joint 

 reaches to between eye and tip of snout; and on the next to largest 

 individual it reaches only to anterior margin of eye. There is a sharp- 

 edged tarsal fold on both of these individuals that extends from inner 

 metatarsal tubercle to tibio-tarsal joint. The vomerine teeth are in 

 transverse rows between the choanae. 



The coloration of this tree frog seems to be quite variable. The 

 upperparts may be unicolored, with white supralabial and lateral 

 line, and with whitish underparts, as in U.S.N.M. Nos. 57740 and 

 16568-76; or the upperparts may be finely speckled, as in U.S.N.M. 

 No. 71090. Dr. E. W. Nelson found two of these tree frogs that 

 were paired in a small stream in the woods near Mirador on February 

 11, 1894. They were pale olive-brown above and whitish below. 



On July 9, 1926, a party from the University of Michigan took one 

 of these tree frogs in a second growth of forest jungle near brook 

 cascades in the vicinity of Necaxa, Puebla. 



