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 



FIG. 114. Frogs and Toads (Anura) I. A, Surinam Toad, Pipa americana; 

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

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

 F, Common Toad, Biifo lentigwosus s. americanus, with vocal sac inflated. G, 

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

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



