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. 16. 



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. 



1. Nesobia natunae (Gthr.). 



Leptobrachhtm natimae^ Gunther, 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 (Bunguran). 



