244 The Philippine Journal of Science leis 



Variations. — Table III shows clearly the variations in a series 

 of nearly equal-sized specimens. Twenty-five specimens were 

 taken, and all are females. All except two were taken on Little 

 Govenen Island.' These all showed the characteristic zigzag 

 markings, and usually three short longitudinal dark stripes were 

 present betw^een the shoulders; the series of yellow spots were 

 present on all specimens taken; the three scales between the 

 supranasals are frequently replaced by a single large scale ; there 

 is also variation in the arrangement of the chin-shields, but 

 the three pairs following the mental are usually largest. There 

 is slight variation in the length of the snout; sometimes the 

 diameter of eye is contained in the eye to snout distance less 

 than two times. Regenerated tails are flatter and have a 

 sharper, more prominent, serrated edge than normal specimens. 



Remarks. — Not a single male specimen was found.* This is 

 especially surprising in view of the fact that so large a series 

 was taken and in such a restricted locality. No explanation 

 seems possible save that the males have different habits from 

 the females and occupy some habitat that could not be discovered. 

 All specimens seen were captured, so it could not be explained 

 by their greater agility in escaping capture. This is another 

 species "closely allied to L. luguhris," but differs from it in sev- 

 eral points. There is a much larger series of preanal scales 

 (pores in males?) ; there are nearly twice as many lamellae under 

 the fourth toe (fifteen in the type). The color pattern is dis- 

 tinctly different ; the body is crossed by the series of zigzag lines 

 instead of having two median rows of spots present; there is 

 invariably present a series of small yellow spots dorsolaterally on 

 the body. A comparison of descriptions shows other differences. 



' Little Govenen is an extremely small island lying less than a kilometer 

 from the southwest coast of Basilan Island. It contains only a few- 

 hundred square meters of land and rises to an elevation of about 15 meters. 

 On my first visit twelve specimens of this species were taken on the bare 

 rocks that jut from one side of the island. All of these, apparently, were 

 females, and later a special trip was made to the island for the purpose of 

 discovering the males. On this trip the entire island was searched, and 

 eleven specimens were taken. These, too, were females. Later two more 

 specimens were found on Bubuan Island and these also were females. 



Many of the specimens contained partly developed eggs, and the sex of 

 these could not be questioned; certain specimens were dissected by myself 

 and others by Dr. E. S. Ruth, of the University of the Philippines, who 

 pronounced all of them females. 



* In this connection one notes that of fifteen specimens of Lepidodactylus 

 luguhris listed by Boulenger [Cat. Liz. Brit. Mus. (1885), 1, 165-166] only 

 one is a male. 



