464 



Vomerine teeth in two small oblique series behind the level of 

 the ehoanae, which are very small. Head much depressed, broader 

 than long ; snout shorter than the diameter of the orbit, rounded ; 

 cauthus rostralis obtuse ; loreal region concave ; nostril a little 

 nearer to the eye than to the tip of the snout ; interorbital space 

 as broad as the upper eyelid ; tympanum moderately distinct, 

 about one third the diameter of the eye. Fingers very long, third 

 at least as long as the distance between the end of the snout and 

 the tympanum ; first finger considerably shorter than second, di- 

 lated into a small disk ; disks of the other fingers very large ; toes 

 webbed to the disks, which are smaller than those of the fingers ; 

 subarticular tubercles moderate ; an oval, flat inner metatarsal 

 tubercle ; no tarsal fold. Tibio-tarsal articulation reaching the 

 tip of the snout ; tibia shorter than the trunk. Skin smooth above ; 

 belly granular. Green above, with blackish spots on the back and 

 cross bands on the limbs ; hinder side of thighs marbled with black ; 

 lower parts and web between the toes marbled brown and whitish. 

 Male with internal vocal sacs. 



From snout to vent 2'6 inches. 



Hob. Khasi Hills and Darjeeling. 



Genus MICRIXALUS, 



Boulenger, P. Z. S. 1888, p. 205. 



Pupil horizontal. Tongue free and bifid behind. Vomeriue 

 teeth none. Tympanum indistinct or hidden. Fingers free, toes 

 webbed, the tips dilated into regular disks. Outer metatarsals 

 separated by web. Omosternum and sternum with a bony style. 

 Digits with the normal number of phalanges, the distal phalanx T- 

 shaped. 



Distribution. Southern India and Ceylon. 



Dwarfed forms otRana, which do not develop voraerine teeth. 



Synopsis of tlie Species. 



A. No glandular dorso-lateral fold; digital 



disks very large, twice as wide as the 

 non-dilated part ; toes webbed to disks ; 

 tongue with a free, pointed papilla on 

 median line. 



a. Belly smooth , M. sa.ricola, p. 465. 



b. Belly coarsely granular M. sarasinorum, p. 465. 



B. A glandular dorso-lateral fold; digital 



disks moderate ; toes incompletely 

 webbed, web not reaching disk of fourth 

 toe. 



a. Toes at least three-fourths webbed ; 



tongue with a free, pointed papilla on 



the median line M. opisihorhothu, p. 465. 



b. Toes at least three-fourths webbed ; no 



lingual papilla : M. fuscus, p. 466. 



c. Toes not half webbed ; no lingual papilla M, silvaticus, p. 466. 



