FROGS AND TOADS. 



67 



Goliath Frog (Leptodactylus pentadactylus, 508), the Horned Toad 

 (Ceratophrys cornuta, fig. 66) of Brazil, and the smaller Esquerzo (C. 

 ornata, 510) of Argentina. The latter is a fierce creature, attacking 

 and killing animals as large as rats, and uttering a bell-like note. 



The members of the families Dactylethridce, 543 (or Xenopodidce), 

 and Pipidce differ from other Frogs and Toads by the absence of the 



Fig. 67. 



The Clawed Toad (Xenopus Icevis), Tropical Africa. (No. 543-) 



tongue. They are consequently arranged in a sub-order (Aglossa) 

 of equal value to a second (Phaneroglossa) which includes the sections 

 Firmisternia and Arcifera. The Clawed Toads {Xenopus, 543, fig. 67), 

 which are the typical representatives of the family Dactylethridce, 

 have teeth in the upper jaw and sharply pointed toes, of which the 

 front ones are free, while those on the hind-feet are united by webs. 

 These toads are entirely aquatic. The Surinam Toad {Pipa ameri- 



f 2 



