277 



usually bordered behind by a dark cross-band between the 

 eyes; the light colour of the snout is sometimes extending 

 along the middle of the back; sometimes one to three large 

 yellow or white spots in the loin; limbs with dark cross-bars; 

 lower parts yellowish, greyish or brownish, sometimes with a 

 narrow white median line. From snout to vent 31 m. 



Habitat: Sumatra (Karo countries, +400 m.!; Petani, 

 Deli, 1000 m. !) ; Java (Buitenzorg ? ; Mt. Pangeranggo ; Mt. Gedeh, 

 + 1200 and 1600 m. ! ; near Tjibodas, 1400 — 2000 m.; Mt. 

 Ungaran ? ! ; Tengger mts., 1200 m.). 



11. Nyctixalus Blgr. 



(Boulenger, Ann. Mag. Nat. Hist., (5) X, 1882, p. 35). 



Pupil vertical. Tongue deeply notched and free behind. 

 Vomerine teeth none. Tympanum distinct or indistinct. Fingers 

 free, toes more or less webbed ; tips of fingers and toes with 

 disks. Outer metatarsals united. 



Omosternum and sternum with a bony style. No intercalary 

 ossicle between the two distal phalanges ') ; terminal phalanges 

 obtuse. 



But for the shape of the pupil N. robinsoni closely resem- 

 bles Philautus aurifasciatus, as Annandale remarks, and the 

 same seems to be true for N. mai'garitifer and Ph. anodon 

 or jlavosignatus. It is therefore not impossible, that Nyctixalus 

 is based on species of Philautus, in which the shape of the 

 pupil is variable ; it should be desirable to examine this character 

 in living specimens. 



Distribution: Java. 



Synopsis of the Species. 



A. Tympanum distinct, nearly as large as the eye. . I. N. margaritifer p. 277. 



B. Tympanum indistinct, very small 2. N. robinsoni p. 278. 



i. Nyctixalus margaritifer Blgr. 



Nyctixalus margaritifer Boulenger, Ann. Mag. Nat. Hist., (5) X, 1882, p. 35. 



Head rather large, broader than the body; snout prominent, 

 obliquely truncate; canthus rostralis angular; loreal region 



1) After a communication of Mr. Male. Smith, who kindly examined a specimen 

 of N. margaritifer for me. 



