180 DYSCOPHID^. 



Synopsis of the Genera. 



Precoracoids present ; sternum very large ; tips of fingers and toes 

 not dilated 1. Dyscophus, p. 180. 



Precoracoids present ; stemnm small ; tips of fingers and toes not 

 dilated 2. Calluella, p. 181. 



Precoracoids none ; sternum small ; tips of fingers and toes dilated. 



3. Cophyla, p. 182. 



1. DYSCOPHUS. 



Dyscophus, Graitdid. Ann. So. Nat. (6) xv, 1872, a. 20, p. 10. 



PupU erect. Tongue oval, entire and free behind. Vomerine 

 teeth in a long series across the palate. A cutaneous, denticulated 

 fold across the palate, between the choanse. Tympanum distinct or 

 hidden. Pingers free ; toes webbed, the tips not dilated. Outer 

 metatarsals united. Coracoids strong ; precoracoids weak, imper- 

 fectly ossified, resting upon coracoids ; omosternum cartilaginous ; 

 sternum a very large anchor-shaped cartilaginous plate. Diapo- 

 physes of sacral vertebra moderately dilated. Terminal phalanges 

 simple. 



Madagascar. 



1. Dyscophus insularis. 



Dyscophus insularis, Orandid. I. v. 



Kaloula guineti, Orandid. Ann. So. Nat. (6) ii. a. 6, and Bull. Soc. 

 PhUom. (7) i. p. 41. 



Vomerine teeth in a long transverse series, interrupted in the 

 middle. Tympanum hidden. A shovel-shaped metatarsal tubercle. 

 Head and body smooth, flanks and belly granular. Eeddish brown 

 above, vermiculated with darker brown ; the markings bordered 

 with very narrow yellow lines ; flanks reddish ; belly reddish brown. 



Madagascar. 



?«. Skin. Madagascar. 



2. Dyscophus antongilii. 



Dyscophus insularis, var. antongilii, Grandid. Bull. Soc. PhUom. (7) 



i. p. 41. 

 sanguineus, Boettger, Zool. Ana. 1880, p. 667. 



Vomerine teeth in a long, scarcely interrupted series across the 

 palate, behind the choanae. Snout short, rounded; canthus ros- 

 tralis slightly distinct ; interorbital space a little broader than the 

 upper eyelid ; tympanum distinct, vertically oval, its vertical diameter 

 two thirds the greatest diameter of the eye. First and second 

 fingers equal ; toes one-third webbed ; tips of fingers and toes blunt ; 

 subarticular tubercles well developed ; inner metatarsal tubercle 

 rather strong, oval, compressed, with blunt edge ; no outer tubercle. 

 The hind limb being carried forwards along the body, the tarso- 



