92 '^he Philippine Journal of Science 1915 



distinct light markings; labials with several small white spots; 

 abdomen and throat yellowish white, powdered with brown; 

 arms and legs marbled with brown; toes with dark and white 

 spots alternating. 



Measurements. — Total length (extreme end of tail regener- 

 ated) , 170 millimeters ; snout to vent, 88 ; foreleg, 36 ; hind leg, 

 48; width of head, 18. 



Variations. — Several other specimens taken at the same time 

 vary more or less in the shade of brown or light color. The 

 markings are much the same in all the specimens ; in the young 

 the colors are almost pure black and white. In 2 specimens 

 the rostral is fused with the "interrostral." The largest 

 specimen, a female with regenerated tail, has the following 

 measurements: Length, 220 millimeters; snout to vent, 106; 

 foreleg, 40; hind leg, 55; width of head, 23. The preanal and 

 femoral pores of the female are much smaller than those of 

 the male. 



Remarks. — The occurrence of distinct pores in the female is 

 very unusual. So far as I know this species is unique in the 

 family with regard to this characteristic. Boulenger, in de- 

 scribing the family Geckonidse, states :° 



Males are generally distinguished from females by a larger size, the 

 swelling of the base of the tail, and the presence of femoral or prseanal 

 pores, which are constantly absent in the latter. 



The perforations in the scales are visible to the naked eye. 

 Examination of the underside of the skin with a microscope 

 showed the presence of small glands with well-defined ducts. 

 I have not ascertained whether or not the pores are functional. 



It is true that in many genera of this family, while there 

 are no pores in the females, the scales corresponding to the 

 pore-scales of the males are enlarged and differentiated, and it 

 is possible to ascertain to a certain degree of accuracy the num- 

 ber of pores in a male of a species by an examination of female 

 specimens. In Gecko verticillatus the pore scales of the females 

 have decided pits, but I have not ascertained whether or not 

 the scales are perforated. This characteristic, I think, does not 

 necessitate the establishing of a new genus, although it may 

 call for a modification of the definition. 



Gymnodactylus annulatus sp. nov. 



Diagnosis. — Dorsal granules minute, with from 14 to 16 ir- 

 regular longitudinal rows of enlarged, conical or trihedral tuber- 



"Catal. Lizards Brit. JVIus. 2d ed. (1885), 1, 5. 



