234 



5- S tauroi s Cope. 



(Cope, Nat. Hist. Review, V, 1865, p. 114; Boulenger, Ann. Mag. Nat. 

 Hist., (9) I, 1918, p. 372). 



Pupil horizontal. Tongue deeply notched and free behind. 

 Vomerine teeth absent or feebly developed. Tympanum more 

 or less distinct. Fingers free, toes extensively webbed (the 

 web involving the base of the disks) ; fingers and toes with 

 large disks, which are broader than long and have a trans- 

 verse groove across the lower surface, continuous with the 

 groove between the upper and lower surfaces. Outer meta- 

 tarsals entirely separated by web. 



Omosternum and sternum with a bony style. No intercalary 

 ossicle between the penultimate and terminal phalanges; the 

 latter T-shaped. 



Tadpoles. — A large sucking disk behind the mouth. 



Distribution: Malay Peninsula; Philippines; Borneo. 



Synopsis of the Species. 



A. Tongue without papilla. Vomerine teeth present. 



I. Head as long as broad, much depressed . . . I. S. larutensis p. 234. 

 II. Head longer than broad, moderately depressed. 2. S. guttatus p. 235. 



B. Tongue with papilla. No vomerine teeth. 



I. Heel reaching tip of snout or beyond 3. S. nubilus p. 236. 



II. Heel reaching between eye and nostril . . . . 4. S. tuberilinguis p. 237. 



Synopsis of the Tadpoles. 



A. Both jaws undivided I. S. larutensis p. 234. 



B. Upper jaw divided in two pieces 2. S. guttatus p. 235. 



i. Staurois larutensis (Blgr.). 



Rana larutensis Boulenger, Ann. Mag. Nat. Hist., (7) III, 1899, p. 273, pi. XI, fig. 1. 

 Rana larutensis Laidlaw, Proc. Zool. Soc. London, 1900, p. 886, pi. LVII, 



figs. 3, 4 (tadpole). 

 Rana larutensis Boulenger, Vert. Fauna Malay Penins., Rept. and Batr., London, 



1912, p. 245. 

 Staurois larutensis Boulenger, Ann. Mag. Nat. Hist., (9) I, 19 18, p. 374. 



Tongue without papilla; vomerine teeth in two very small 

 groups just behind the level of the choanae. Head as long as 

 broad, much depressed ; snout rounded or subacuminate, shorter 

 than the orbit; canthus rostralis sharp; loreal region concave; 



