430 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



"Hood. Sept. 26, 1905. — They were found in the holes in 

 the wood made by insects ; generally in the smaller branches of 

 the brush. They are very quick and can easily escape in the 

 brush or under the rocks which cover the ground everywhere. 

 Two eggs were found under a stone. Oct. 1. — The geckos 

 were found in old wood and cactus stumps. None were found 

 under rocks. Feb. 1, 1906. — Williams collected several geckos 

 under lava blocks near the shore. 



"Gardner-near-Hood. Sept. 27, 1905. — Found several 

 geckos — some under stones and some in old wood. Feb. 3, 

 1906. — Found the geckos fairly common under loose lava near 

 the beach." 



General remarks. — Enderby, Champion, and Gardner are 

 three islets near Charles, while a second Gardner bears the 

 same relation to Hood Island. The fact that different, though 

 closely related, species of snakes occur on Charles and Hood 

 islands has led me to expect to find similar differentiation in 

 the geckos. That such differences do not exist, is not less 

 interesting, for it emphasizes the close relationship between the 

 reptilian fauna of these two islands — a relationship which I 

 believe indicates a former connection between Charles and 

 Hood, after their separation from the rest of the archipelago. 



Eggs found under loose stones on Charles islands, October 

 4 to 11, 1905, measure 9.5X7, 10X7.1, 10X7.8, 10X8, 10.4 

 X7.2, 10.4X8.6, 10.5X7.4, 10.7X7.9, 10.9X7.6, 10.9X8, 

 11X7.3, 11X8, and 11.3X7.8. One from Hood measures 

 10X7.4 mm. The shells are of the same character as those of 

 P. leei from Chatham and P. galapagoensis from Albemarle. 



