4. AIYTES. 449 



iii, p. 358 ; Schreiher, Herp. Eur. p. 102 ; Lataste, Hei-p. Qir. 



p. 249 ; Leydig, An. Batr. p. 64. 

 Obstetricans vulgaris, Dugis, Rech. OaUol. Batr. 

 Alytes obstetricans delislei, Lataste, Bev. Intern. Sc. 2nd year, p. 543. 



Vomerine teeth in a straight, interrupted line behind the choana3. 

 Habit stout. Snout rounded. Head about one third total length. 

 Tympanum two thirds the width of the eye. First finger shorter 

 than second, which equals fourth ; three metacarpal tubercles ; toes 

 short, webbed at the base, fringed ; a small inner metatarsal 

 tubercle. The hind limb being carried forwards along the body, the 

 tibio-tarsal articulation reaches the tympanum. Skin of upper 

 surfaces warty ; a small parotoid, sometimes indistinct ; a more or 

 less distinct large gland in the upper integument of forearm and of 

 tibia ; belly granular. Olive-grey above, dotted and spotted with 

 darker. Male without vocal sac. 



France, Switzerland, Belgium, W. Germany. 



a-a. d & egga. Paris. 



d-e. S? Bonn. Dr. A. Giinther [P.]. 



y. S & eggs. ? Sir A. Smith [Pr|. 



Vae. bosc89. 



Alytes obstetricans boscai, Lataste, Bev. Intern. Sc. 2nd year, p. 543, 

 and Actes Soc. Linn. Bord. xxxiv. pi. 11. f. 3-5. 



Head larger, more than one third total length. Spots larger, 

 more distinct. 

 Spain, Portugal. 



g. <3 ■ Valencia, Spain. Lord Lilford [P.]. 



h-i. d • Porto. E. Allen, Esq. 



2. Aljrtes cisternasii. 



Alytes cisternaai, Bosca, An. Soc. Esp. viii. 1879, p. 217. 

 Ammoryctis cisternaai, Lataste, C. B. Ac. Paris, 1879, p. 983 ; Bosca, 

 An. Soc. Esp. X. 1881, pi. 2. f. 1-6. 



Differs from A. obstetricans chiefly in the following characters : — 

 Habit stouter still. Interorbital space broader. Fourth finger 

 shorter than first. Two metacarpal tubercles. Tibio-tarsal articu- 

 lation not reaching the tympanum. Skin nearly smooth above. 



Spain. 



11. AMPHIGNATHODONTID^. 



Both jaws toothed ; diapophyses of sacral vertebra dilated. 



But in the presence of teeth in the lower jaw, the unique genus 

 of this family agrees in all important characters with the Hylida, 

 and particularly the genus Nototrema. 



2& 



