67 



Key to the Indo- Australian geHerd. 



A. No femoral pores. 



I. A wing-like dermal expansion I. Draco^ p. 68, 



II. No wing-like dermal expansion. 



a. Tympanum hidden. 



1. A dorsal crest. 



I No fold across the throat, neither in front 



of the shoulder; scales small 2. Apkaniotis^ p. 88. 



tt Scales very large, irregular; tail prehensile 3. Cophotls^ p. 90. 

 ttt An oblique fold in front of the shoulder. 4. Japalura^ p. 92. 



2. No dorsal crest. 



Scales small, intermixed with large conical 



tubercles 5- Phoxophrys^ p. 94. 



h. Tympanum distinct. 



1. Snout ending in a long compressed appendage 6. Harpesaurus^ .y. 96. 



2. Snout without appendage. 



t A strong fold across the throat. 



* Males with a gular sac; digits keeled 



infer iorly . 7- Gojtyocephalus^ p. 99. 



** Males without gular sac; digits not 



keeled inferiorly 8. Lophocalotes^^. 116. 



tt No fold across the throat. 



a. Male with gular sac ; dorsal scales slightly 



unequal 9- Dendragama^ p. 117. 



b. Male with gular sac; dorsal scales equal. 10. Caloics^ p. 120. 



c. Male without gular sac; dorsal scales 



unequal n. Acani/iosaura^p. 125. 



B. Femoral or praeanal pores present, at least in the 

 males. 



I. Neck with a large dermal collar 12. C/i/amydosaienis^ p. 126. 



II. No large dermal collar. 



1. Body compressed. 



a. A dorsal crest; throat with longitudinal folds; 

 tail strongly compressed, crested; femoral 



pores present; toes lobate IS- Lophura^ p. 128. 



b. A dorsal crest; tail round or slightly com- 

 pressed; femoral pores present; toes denti- 

 culated 14- Physig?tathus^ p. 131. 



2, Body depressed. 



a. No dorsal crest; tail round; one or two 



praeanal pores, no femoral pores 15. Diporop/iora^ p. 134. 



b. No dorsal crest; tail round; femoral pores 



present; skin of the sides expansible 16. Liolepis^ p. 135. 



