AMPHIBIA 



197 



this movement the eggs were spread with nearly uniform smoothness 

 over the whole surface of the back of the female to which they became 



Fia. 114. — Frogs and Toads (Anura) I. A, Surinam Toad, Pipa americatia; 

 B, Fire-bellied toad, Bombinalor igneus; C, Midwife Toad, Alytes obstetricans; 

 D, Spade-foot Toad, Pelobates cuUripes; E, foot of Pelobales showing tarsal spur; 

 F, Common Toad, Bitfo lentiginosus s. americanus, with vocal sac inflated. G, 

 same stalking its prey. (A and C, redrawn after Lydekker; B, D, and E, redrawn 

 after Gadow; F and G, redrawn after Dickerson.) 



