Female. 



Male. 



mm. 



mm. 



210 



209 



81 



81.5 



129 



127.5 



27 



27 



48.5 



45 



18 



16.2 



12.5 



11 



11 



10 



33 



32.5 



38.5 



37 



DRACO 117 



The males can make extremely rapid changes of color. They 

 change from light to dark green, to light, or dark reddish 

 brown in less than a minute, and vice versa. When the brown 

 specimens are placed in alcohol the green returns largely and 

 when fixed they are blue-green to blue in color, the salmon below 

 largely disappearing. The head markings vary considerably in 

 preserved specimens. 



Measurements of Draco rizali Wandollek. 



Total length 



Snout to vent 



Tail 



Snout to foreleg 



Axilla to groin 



Length of head 



Width of head 



Interorbital distance 



Foreleg 



Hind leg 



Remarks. — I have referred to this species the common Draco 

 of Sulu Archipelago. The type is from northwestern Minda- 

 nao. I have taken several specimens in Zamboanga. The type 

 was collected by Dr. Jose Rizal while exiled in Dapitan. Thanks 

 to Prof. Austin Craig, of the University of the Philippines, 

 I have been able to obtain a print from a photograph of the type 

 specimen, taken by him in the Dresden Museum. 



One striking difference between the sexes, which the photo- 

 graph of the Bureau of Science here reproduced has failed to 

 show, is that the light spots on the female are readily discerni- 

 ble through the wing, while the spots on the male are more in 

 the nature of a wash and can scarcely be discerned, or not at all, 

 through the membrane. 



DRACO ORNATUS (Gray) 

 Plate 6, fig. 1 



Dracunculus ornatMs Gray, Cat. Liz. (1845) 235. 



Draco ornatus Gunther, Proc. Zool. Soc. London (1873) 167; Bou- 



LENGER, Cat. Liz. Brit. Mus. 1 (1885) 259; Boettger, Ber. Senck. Nat. 



Ges. (1886) 97; Werner, Mitt. Natur. Mus. Hamburg 27 (1910) 17. 



Description of species. — (Described from four specimens from 

 E. H. Taylor collection; collected 1912-1913, in Agusan Valley, 

 Mindanao,, by E. H. Taylor.) Snout longer than diameter of 

 orbit ; rostral wider than deep, bordered by six or seven scales ; 



