GEKKO 91 



Digits strongly dilated, free, or webbed at base, with undivided 

 lamellae below; all but thumb and inner toe with a very short 

 compressed distal phalanx with retractile claw. Body covered 

 with small irregular scales and tubercles ; belly with imbricated 

 scales. Pupil vertical. Preanal or femoral pores present in 

 males, and pores sometimes present in females.* 



It will be seen from the synonymy that the genus defined by 

 Laurenti is spelled Gekko and not Gecko. Gecko rhacophortcs, 

 which Boulenger has described from Borneo, undoubtedly be- 

 longs in a separate geinus. The broad, scaled, lateral expansion 

 and the fringed tail clearly separate it from Gekko. 



There are three species of Gekko known in the Philippines and 

 they may be easily differentiated by the following key : 



Key to the Philippine species of Gekko Laurenti. 



aS Rostral not entering nostril; body with 12 rows of tubercles; preanal 

 pores, 11 to 15; grayish blue, spotted with orange red. 



G. gecko (Linnaeus) (p. 94). 

 a^ Rostral entering nostril. 



6\ Body covered with numerous spiny tubercles; preanal and femoral 

 pores, 32 to 40, in a continuous series; light gray to brown with 

 a median series of paired dark spots. 



G. monarchus (Dumeril and Bibron) (p. 91). 

 b^. Body covered with fewer, rather flattened tubercles; preanal and 

 femoral pores continuous, 55 to 64; markings not well defined. 



G. mindorensis Taylor (p. 98). 



GEKKO MONARCHUS (Dumeril and Bibron) 

 Plate 1, fig. 1 



Platydactylus monarchus Dumeril and Bibron, Erp. Gen. 3 (1836) 



355; Cantor, Cat. Mai. Rept. (1847) 19. 

 Platydactylus (Scelotretus) monarchus Fitzinger, Syst. Rept. (1843) 



101. 

 Gecko monarchus Gray, Cat. Liz. (1845) 161; Girard, U. S. Explor. 



Exp., Herp. (1858) 292; Gunther, Rept. Brit. India (1864) 103; 



Boulenger, Cat. Liz. Brit. Mus. 1 (1885) 187; de Rooij, Rept. Indo- 



Aust. Arch. 1 (1915) 54. 



Description of species. — From No. 876, E. H. Taylor collec- 

 tion; collected at Bunawan, Agusan, Mindanao, August, 1912, 

 by E. H. Taylor.) Head large, oviform, flattened, with a broad 

 distinct groove beginning slightly posterior to posterior level 

 of eyes, and continuing forward to some distance on snout, where 

 it narrows greatly and continues to end of snout; snout long, 



* The preanal pores are smaller in the female than in the male, and in 

 some cases appear to consist of merely a perforation in the preanal scales. 



