DESCRIPTION OF A NEW FROG FROM. THE PHILIPPINE 



ISLANDS 



By LEONHARD STEJNEGER 

 Curator. Division of Reptiles and Batrachians, U. S. National Museum 



Having received through the courtesy of Mr. Thomas Barbour a 

 topotype of Dumeril and Bibron's Rana macrodon from Java, a sus- 

 picion entertained by me for several years has received confirma- 

 tion, namely, that the species occurring in the Philippine Islands, 

 and commonly recorded as Rana macrodon, in reality is a well- 

 differentiated form. I therefore propose to separate it under a dis- 

 tinctive name. 



RANA MAGNA, new species 



Diagnosis. — First finger longer than second; a distinct dermal 

 flap along outer edge of fifth toe and metatarsal ; no outer metatarsal 

 tubercle; tympanum one-half diameter of eye, or less, its distance 

 from eye larger than or equaling its own diameter; vomerine teeth 

 in two oblique series between and behind the choanae, their distance 

 from the choanse nearly equaling the diameter of the latter ; upper 

 surface smooth, with numerous small pointed tubercles on sacrum 

 and upper surface of tibia. 



Habitat. — Philippine Islands. 



Type-specimen. — Cat. No. 35231, U. S. N. M. ; Mount Apo, Min- 

 danao, between Todaya and camp, 4,000 to 6,000 feet altitude; 

 Dr. E. A. Mearns, collector. 



Description of type-specimen. — Vomerine teeth in two oblique 

 series between and behind the choanae, their distance from the 

 choanae nearly equaling the diameter of the latter ; two bony "teeth," 

 6 mm. long, near the anterior end of lower jaw fitting into deep 

 holes in the upper ; head large, broad, its width at tympanum greater 

 than distance from tip of snout to posterior rim of tympanum ; snout 

 short, rounded; canthus rostralis well-defined, angular; nostril just 

 below canthus ; distance between nostrils but slightly less than their 

 distance from eye, greater than their distance from lip and greater 

 than width of upper eyelid ; interorbital space somewhat wider than 

 upper eyelid; lores concave; tympanum very distinct, its diameter 

 slightly less than one-half the diameter of the eye, and distant from 

 the latter by nearly twice its own diameter; first finger longer than 



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