List of Half Tones 



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Plate Facing Page 



dead," even breathing movements are sus- 

 pended. (Bufo fowleri, female.) Fig. 80. 

 "Ready for new emergencies." Fig. 8!. Pro- 

 tective resemblance of Fowler's Toad . 95 

 XXIX Figs. 82-84. Fowler's Toad; study of hand 

 and foot; vocal pouch; texture of skin; 

 parotoids and cranial crests ... 98 

 XXX Fig. 85. Structure study of hand and foot of 

 Bufo cognatus. Fig. 86. Defensive. Fig. 

 87. Ready for emergencies • • • 99 

 XXXI Figs. 88-89. •'^^/^ cognatus Say; structural 

 characteristics of under surface; identifica- 

 tion characteristics of bony crests of head, 



of parotoids, etc. 



XXXII Figs. 90-92. Biijo cognatus Say: intricate pat- 

 tern of lines on back; short head; length of 

 foot ; comparison of striped and spotted toad 

 XXXIII Figs. 93-95. BujocompactilisW\Qgm:\nsX\nc\.s 

 for hiding and burrowing; study of hand 

 and foot; parotoid glands; warts on upper 



surface 



XXXIV Figs. 96-98. Studies of Bujo compactilis 

 Wiegm. Figs. 99-100. Bufo cognatus Sa.y; 



vocal bladder 



XXXV Figs. 1 01-106. The Oak Toad (Bufo querct- 

 cus Holbrook) : bony crests of head ; arrange- 

 ment of light and dark colour on upper 

 parts; covered with small warts; structure 



study of underparts 104 



XXXVI Figs. 107-109. Bufo alvarius Girard: texture 

 of skin, parotoid glands, cranial crests and 

 other identification points . . . .105 

 XXXVII Figs, iio-iii. Bufo alvarius Girard: studies 



of palm and foot 106 



XXXVIII Figs. 112-113. Bufovalliceps\OM\.\meoi]2cw, 

 texture of skin of under parts and structure 



of hand 107 



XXXIX Fig. 114. Bufo valliceps Wiegm: structure 

 study of upper surface. Fig. 1 1 5. Bufo 



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