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



other localities may perhaps require similar treatment when 

 larger series have been gathered, but it now seems best to use 

 but one name for the Indefatigable, James, Cowley, Brattle, 

 and Albemarle specimens. 



Habits. — Mr. Slevin's field notes on this species are as fol- 

 lows: 



"James Island. Dec. 29, 1905. — I saw three geckos, and got 

 two from under the bark of a large thorn tree. These were the 

 only ones seen by any of the party. 



"Cowley Island. August 13, 1906. — I collected several 

 geckos under the loose lava blocks. 



"Brattle Island. Oct. 20, 1905. — Collected two snakes and 

 four geckos. 



"Tagus Cove, Albemarle. March 23 to 31, 1906. — Geckos 

 are rare, according to Williams. He has collected three, so 

 far, while hunting for beetles under stones. April 4, 1906. — 

 I have found no geckos here, nor have I seen any snakes. 



"Cowley Mt., Albemarle. Aug. 10 and 11, 1906. — Williams 

 collected two geckos under an old piece of tortoise shell at 

 about 400 feet elevation. He also reports seeing one at about 

 1800 feet. 



"Iguana Cove, Albemarle. March 19, 1906. — No one of 

 the party saw any geckos. March 20. — Williams got a gecko 

 today under a rock near the cove. March 21. — Eggs of geckos 

 are common under the stones, and Williams collected a few. 

 He also secured some geckos, but they are not very abundant 

 so far as observed. They were all taken under stones. 



"Vilamil, Albemarle. Nov. 3, 1905. — Williams brought in 

 quite a number of geckos. They were found under the bark of 

 trees on the trail to the settlement. March 5, 1906. — Two 

 geckos were found under the bark of old dead stumps. March 

 7, 1906. — Geckos are rare here, and seem to live under the bark 

 of trees and in old wood rather than under stones. August 22 

 to 30, 1906. — Williams found a few geckos under the bark of 

 trees at an altitude of about 1500 feet." 



General remarks. — No geckos have been taken on Narbor- 

 ough Island. However, there is no reason for thinking that 

 they do not occur there, and I believe that a Phyllodactylus 

 either identical with, or closely related to P. galapagoensis will 



