126 



DISCOGLOSSID.E. 



Vomerine teeth in a long, straight or slightly 



curved series, narrowly interrupted in the middle, 



behind the choanre, and extending outwards to the 



Fig. 48. vertical of their outer borders or even 



a little beyond. Tongue moderately 



large, circular, thick, adherent, scarcely 



free behind. 



Head much depressed, a little broader 

 than long; snout rounded or obtusely 

 pointed, projecting considerably be- 

 yond the mouth, as long as or a little 

 longer than the diameter of the orbit ; 

 no canthus rostralis ; dorsal region slightly grooved ; 

 nostril a little nearer the tip of the snout than the 

 eye ; eye moderate ; interorbital space as broad as or 

 a little narrower than the upper eyelid, and equal to 

 the distance between the nostrils ; tympanum measur- 

 ing three-fifths to two-thirds the diameter of the eye, 

 sometimes feebly distinct, often completely hidden. 



Open mouth. 



Fig. 49. 



A 



Heads of males, upper views, a. Corunna. 



r>. Sardinia. 



Tlemsen. 



