DRACO. Ill 



y'. A dorsal crest ; scales very- 

 large, subequal, irregular ; 



tail prehensile Cophotis, p. 117. 



S'. No dorsal crest ; a large rostral 

 appendage, at least in the 



male Cebatophora, p. ] 18. 



e'. A dorsal crest ; a V-shaped 

 gular fold ; a bony supra- 

 orbital arch Lyriocephalus, p. li'l. 



('. A dorsal crest ; an oblique fold 



in front of the shoulder. . . . Japaluka, p. 1:21). 

 ^. Tympanum exposed. 



a. A strong fi>ld across tlie 



throat Gonyocephalus, p. 122. 



13'. No fold across the throat ; 

 dorsal scales unequal ; no 



gular pouch Acanthosauea, p. 124. 



y'. No fold acro-ss the throat; 



dorsal scales large, unequal ; 



males with a gular pouch . . Salea, p. 131. 



8'. No fold, or a very feeble one, 



across the throat; dorsal 



scales equal Oalote.s, p. 132. 



b'. Body more or less depressed. 



a". Typanum exposed; males without 



callous pra^anal scales Chabasia, p. 144. 



b". Tymx)anum exposed; males with 



callous prasanal scales Agama, p. 146. 



c". Tympanum concealed Phrynocephalus, p. 152. 



B. Femoral pores present. 



a. Tail long, round, feebly depressed, 



covered with small, equal scales. Liolepis, p. 156. 

 h. Tail with whorls of large, spinose 



scales Uromastix, p. 157. 



Genus DEACO, 

 Linn. Syst. Nat. i, p. 358, 1766. 



Body depressed, with a large lateral wing-like meuibraue, 

 folding like a fan, supported by the last five or six ribs which are 



Fig. 36. — Heads of Draco maculatus and Draco dussumieri. 



much produced. A gular appendage, and a lateral smaller one on 

 each side. Tympanum distinct or covered with scales. Tail long. 

 j\o femoral or prseanal pores. 



Distribution. The greater part of the Oriental region. 



