236 



tubercles rather small; two small metatarsal tubercles; the 

 heel reaches beyond the tip of the snout. 



Skin coarsely granulate above; sometimes a distinct glan- 

 dular dorsolateral fold; belly finely granular, otherwise smooth 

 below. 



Above brown, with large, rounded, sometimes confluent 

 dark-brown spots; legs with dark cross-bars; hinder side ot 

 thighs blackish-brown, with a few small lighter spots; web 

 between the toes black. Length 47 mm. 



Male with two internal vocal sacs. 



Tadpole. — A large sucking disk behind the mouth. Jaws 

 with denticulated borders, the upper one consisting of two pieces. 



This tadpole has been referred to Staurois guttatus by 

 Boulenger (Ann. Mag. Nat. Hist., (6) XIV, 1894, p. 87). It 

 may belong as well to 5. nubilus or tuberilinguis or to some 

 species of Rana, allied with R. whiteheadi. 



Habitat: Borneo (Mt. Kina Balu, 900 and i300m.;Baram 

 riv. ; Mt. Dulit; Seberuang riv. ; Matang). • 



3. Staurois nubilus Mocq. 



Ixalns nubilus Mocquard, Nouv. Arch. Mus. d'Hist. nat., (3) II, 1890, p. 153, 



pi. XI, fig. 3. 

 Ixalus ?iatator var. nubilus Mocquard, Mem. Soc. Zool. France, V, 1892, p. 195. 

 Staurois nubilus Boulenger, Ann. Mag. Nat. Hist., (9) I, 1918, p. 374. 



A rounded papilla in the middle of the anterior part of 

 the tongue; vomerine teeth absent. Snout obtuse, projecting, 

 as long as the eye; canthus rostralis angular; loreal region 

 vertical; nostril twice nearer to tip of snout than to eye; interor- 

 bital space a little broader than the upper eyelid ; tympanum 

 distinct, somewhat more than ! / 3 the width of the eye. Fingers 

 and toes with large disks, those of fingers larger than the 

 tympanum; first finger as long as second; toes fully webbed; 

 subarticular tubercles well developed; inner metatarsal tubercle 

 narrow, rather prominent, no outer one ; the heel reaches the 

 tip of the snout or beyond. 



Upper surfaces coarsely granulate ; no fold above the tym- 

 panum ; smooth beneath. 



Dark brown above, uniform or with a few light veins; more 

 or less distinct cross-bars may be present on the hind limbs; 

 lower parts yellowish grey. From snout to vent 45 mm. 



Habitat: Borneo (Seberuang riv.). — Pelawan. 



