282 JiTJTONIDJE. 



Cranopsis, Cope, Journ. Ac. Philad. (n. s.) viii. part 2, 1870, p. 90, 



Crepidius, Cope, I. c. p. 97. 



Ollotis, Cope, I. c. p. 98. 



Dromoplectms, Camerano, Atti Ace. Tor. xiv. 1879, p. 882. 



Pupil horizontal. Tongue elliptic or pyriform, entire and freo 

 behind. Vomerine teeth uone. Tympanum distinct or hidden, 

 seldom absent. Fingers free ; toes more or less webbed, the tips 

 simple or dilated into small disks. Outer metatarsals united. 

 Omosternum generally missing ; if present, cartilaginous ; sternum 

 a cartilaginous plate, sometimes more or less ossified along the 

 median line. Diapophyses of sacral vertebra more or less dilated. 

 Terminal phalanges obtuse or triangular. 



Cosmopolitan, except Australia. 



Synopsis of the Species. 

 I. Old-World Species. 

 A. Crown without bony ridges. 



1. First finger shorter than second. 



a. Toes half webbed. 



Two small parotoids on each side 1. horbonicus, p. 286. 



No metatarsal tubercles 2. brevipes, p. 287. 



Parotoids none 4. penangensis, p. 287. 



b. Toes more than half webbed. 



Parotoids none 5. pulcher, p. 288. 



Parotoids narrow, elongate 6. Jedaartii, p. 288. 



2. First finger as long as or longer than second. 



a. Parotoids none or indistinct. 



Habit slender; tarso-metatarsal articu- 

 lation reaching far beyond the tip of 

 the snout 3. leptopus, p. 287. 



Tympanum as large as the eye 31. carens, p. 301. 



Canthus rostralis indistinct ; tympanum 



much smaller than the eye 32. llanfordii, p. 301. 



b. Parotoids distinct. 



a. Tympanum as large as the eye, or nearly as largo. 



No tarsal fold ; skin smooth 7. hololius, p. 289. 



A tarsal fold 27. regularis, p. 298. 



/3. Tympanum smaller than the eye. 

 * Toes not half webbed. 

 Tympanum rather indistinct; a tarsal 



