492 Mr. G. A. Boulenger 07i neio 



EXPLANATION OF PLATE YIII. 



LYllL — Descriptions of Four new Frogs and a new Snake 

 discovered hy Mr. H, Sauter in Formosa. By G. A. 

 BOULENGEK, F.R.S. 



(Published by permission of the Trustees of the British Museum.) 



Rana adenojileura. 



Yomeiiue teeth in two small oblique groups between the 

 choanse. Head moderate, as long as broad; snout obtusely 

 jiointed, prominent^ as long as the orbit ; canthus rostralis 

 obtuse; loreal region oblique, concave; nostril equally 

 distant from the eye and from the end of the snout ; inter- 

 orbital region nearly as broad as the upper eyelid ; tympanum 

 very distinct, two-thirds to three-fourths the diameter of the 

 eye. Fingers slender, with slightly swollen tips, first 

 extending slightly beyond second; toes slender, half-webbed, 

 the tijjs dilated into small but distinct disks ; subarticular 

 tubercles moderate; a small oval inner metatarsal tubercle 

 and sometimes a rounded outer one at the base of the fourth 

 toe. The tibio-tarsal articulation reaches the tip of the 

 snout or between the eye and the tip of the snout. Skin 

 smooth ; a moderately broad, very prominent, dorso-lateral 

 glandular fold. Greyish brown above, w ith or without darker 

 spots and marblings, with or without a light vertebral line; 

 a more or less distinct dark band on each side of the head, 

 passing through the eye ; a whitish streak along the upper 

 lip ; dorso-lateral fold dark-edged ; limbs with dark cross- 

 bciis ; hinder side of thighs yellowish, spotted or marbled wdth 



