rarely calcified ; sternum without or with a bony style. Vertebrae 

 procoelous or opisthocoelous. No ribs. Os coccygis fused with 

 the sacral vertebra or articulating with it by one or two condyles. 

 Distribution: America ; Europe ; southern Asia to western 

 part of Indo-Australian Archipelago; New Guinea and Aru 

 islands. 



Synopsis of the Genera. 



A. Pupil horizontal i. Nesobia p. 6. 



B. Pupil erect. 



I. Sternum with a bony style 2. Megalophrys p. 7. 



II. Sternum cartilaginous 3. Batrachopsis p. 1 6. 



I. Nesobia nomen novum. 



Pupil horizontal. Tongue oval, free behind. No vomerine 

 teeth. Tympanum visible. Fingers and toes free, the tips not 

 dilated. 



Omosternum present; sternum with a bony style. 



Distribution: Natuna islands. 



I. Nesobia natunae (Gthr.). 



Leptobrachium natit?iac^ Giinther, Novit. Zool., II, 1895, p. 501. 



Tongue long and narrow. Snout rounded, about as long as 

 the eye; canthus rostralis indistinct; nostril nearly in the middle 

 between eye and tip of snout; interorbital space broader than 

 the upper eyelid; tympanum indistinct, less than half the 

 area of the eye. Tips of fingers and toes blunt; first finger 

 very little shorter than second; toes free; subarticular tuber- 

 cles indistinct; a flat, elongate inner, no outer metatarsal 

 tubercle; the heel reaches the tip of the snout, or beyond. 



Back with very small, flat, indistinct granulations; lower parts 

 quite smooth. 



Brownish olive above, uniform or marbled with brown; upper 

 lip black, with some white spots; a black band from the eye 

 over the tympanum to the shoulder; sides of body with larger 

 or smaller black spots ; hind limbs with brownish cross-bars. 

 Length 19 mm. 



Habitat: Natuna islands (Bungurah). 



