180 UYSCOrHID^. 



iSi/nojisis of the Genera. -"^^^ ^- ^^tYj- 



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

 not dilated 1. Dyscophus, p. ISO. 



I'recoracoids present ; sternum small ; tips of fingers and toes not 

 dilated 2. Calluella, p. ISI. 



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



3. Cophyla, p. 182. 



1. DYSCOPHUS. 



D_yscopLus, Grandid. Ann. Sc. Nat. (5) xv. 1872, a. 20, p. 10. 



Pupil 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 choana). Tympanum distinct or 

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

 metatarsals united. Coracoids strong ; prccoracoids weak, imper- 

 fectly ossified, restiiig 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, Grandid. I. c. -, 



2) O'^t^ff'^^-C^^' I Kaloula guineti, Grandid. Ann. Sc. Nat. (0) ii. a. G, and Hull. Soc. J 

 - ' ^— ^ rhilom. (7) i. p. 41. ^ 



Vomerine teeth in a long transverse series, internrpted in the 

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

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

 above, vermiculated Avitli darker brown ; the markings bordered 

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



Madagascar. I 



? a, Skiu. Madagascar. f 



2. Dyscophus(antongilii. 



Dvscophus insularis, var. autongilii, Grandid. 



Ip. 41. _ 

 sanguineus, Boetti/er, Zool. Anz, 1880, p. 567. 



Vomerine teeth in a long, scai'cely interrupted series across the 

 palate, behind the choana?. 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 develo])ed ; inner metatarsal tubercle 

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

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



