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VERTEBRATE ZOOLOGY 



and do not in any sense serve as propellers. Only short soaring leaps 

 from limb to limb or between adjacent trees can be accomplished. 



Fig. 139. — Group ot Laeertilia, II. A, Horned Toad, Phrijnosoma coniutinn; 

 B, Gila monster, Helodcrrna horridum; 0, Anguis fmgilis (the Glass Snake or 

 Blind-Worm); D, Cape Monitor, Varanus albigularis: E, Galapagos Sea-Lizard, 

 Amblyrhynchus cristalvs; F, Moloch horridus. (All redrawn, A, after Gadow; 

 others after Lydeklier.) 



When the animal is at rest the "wings" are folded against the sides. 

 The flying dragons are natives of Indo-Malayan countries. Not much_ 



