228 



the head, which in R. picturata is as long as broad (a little 

 longer than broad in R. signata). 



Habitat: Sumatra (Mt. Simbolon; Airbangis!); Borneo 

 (Mt. Kina Balu ; Lawas, Brunei; Akar riv. and Bidi caves, 

 Serawak; Matang; Barabai). — Malay Peninsula; Philippines. 



2. Ceratobatrachus Blgr. 



(Boulenger, Proc. Zool. Soc. London, 1884, p. 212). 



Pupil horizontal. Tongue deeply notched and extensively 

 free behind. Vomerine teeth present ; lower jaw with teeth. 

 Tympanum distinct. Fingers free, toes nearly so, the tips not 

 dilated. Outer metatarsals united. 



Omosternum and sternum with a bony style, the first bifur- 

 cated at the base. Terminal phalanges simple. 



Distribution: Solomon islands. 



Ceratobatrachus guentheri Blgr. 



Ceratobatrachus Guentheri Boulenger, Proc. Zool. Soc. London, 1884, p. 212. 

 Ceratobatrachus Guentheri Boulenger, Transact. Zool. Soc. London, XII, pt. 2, 1886, 

 p. 56, pis. XII and XIII. 



Tongue large, free in its posterior half; vomerine teeth in 

 two short, transverse, sometimes crescentic series behind the 

 level of the choanae; teeth of upper jaw minute, of lower jaw 

 larger, conical, acute, slightly directed backwards, inserted on 

 the edge of the mandible. Head very large, strongly depressed, 

 broader than long, its length contained i 2 / 5 to i 3 / 5 in the 

 length of the body; snout not projecting, 1 '/ 4 to i J / 3 the 

 diameter of the orbit; canthus rostralis distinct, straight ; loreal 

 region very oblique, concave ; nostril twice as far from eye 

 as from tip of snout; interorbital space much broader than 

 the upper eyelid, deeply concave; tympanum distinct, verti- 

 cally elliptic, nearly as large as the eye. Tips of fingers and 

 toes slightly swollen ; first finger much longer than second, 

 which is slightly shorter than fourth ; fifth toe much shorter 

 than third; toes with a very slight rudiment of web; subar- 

 ticular tubercles very strong, of toes smaller than of fingers; 

 an inner large, oval, a little compressed and very prominent 

 metatarsal tubercle, and an outer small, rather indistinct one ; 

 the heel reaches the posterior border of the eye, or between 

 the latter and the tympanum; tibia nearly as long as the head. 



