69 



f A lateral series of enlarged, distant 

 scales; tail with a strong crest . . . 

 tt No enlarged lateral scales. 



I. Tympanum usually scaly ; mem- 

 branes dark brown above, with 

 light longitudinal lines, sometimes 

 also light transverse bands .... 

 II. Tympanum usually naked. 



1. Membranes orange, brown or 

 yellow above, with a black outer 

 border and black spots near the 

 outer margin 



2. Membranes yellowish above, 

 with small black spots on the 

 basal part 



3. Membranes reddish-brown, 

 black along the margin, with 

 indistinct lighter spots 



c. Dorsal scales smaller than ventrals. 



1. Tympanum scaly; no caudal crest: 

 no enlarged lateral scales 



2. Tympanum naked; a caudal crest; 

 a lateral series of enlarged scales 

 on the posterior part of the body 



3. Tympanum partly naked; a caudal 

 crest; no lateral series of enlarged 

 scales 



B. Nostril vertical, directed upwards. 



I. Tympanum scaly. 



a. The hind limb reaches the axilla; 

 four widely separated enlarged scales 

 on each side of the back ; gular sac one 

 time and a half the length of the head 



0. The hind limb reaches slightly beyond 

 the elbow; lateral series of enlarged 

 scales very indistinct; gular sac not 

 quite twice the length of the head . . 



c. The hind limb reaches slightly beyond 

 the shoulder; four groups of enlarged 

 scales on each side of the body ; gular 

 sac shorter than the head 



II. Tympanum naked. 



a. The hind limb does not reach beyond 

 the axilla. 



7. D. punciatus^ p. 75- 



8. D. Hncaius^ p. 76. 



g. D. bcccarii^ p. 77. 



10. D. spilonolus^ p. 77. 



11. D.modiglianii^ p. 78. 



12. D. ochroplcrus^ p. 79. 



13. D. Jimbrialus^ p. 79. 



14. D. cy'tstatclliis^ p. 80. 



15. D. maxuniis^ p. 81 



16. D. quinqtiefasciatus^ p. 81. 



17. D. crypioiis^ p. 82. 



