REPTILES 



^Z 



MEASUREMENTS OF Phyllodactyltis gilbcrti. 



PHYLLODACTYLUS GALAPAGOENSIS Peters. 



Phyllodactyhis galapagoensis Peters, Mon. Berl. Ac, p. 720, 1869. — 

 Steindachner, Festschr. Zool.-bot. Ges. Wien, p. 329, 1876. — Gar- 

 man, Bull. Essex Inst., xxiv, p. 9, 1892. 



Range. — Galapagos Archipelago ; Albemarle Island at Tagus and 

 Iguana Coves and on the southeast coast (Kinberg; Baur; Hopkins 

 Stanford Expedition). 



Specific Characters. — Digital pallets small, width less than one 

 half diameter of eye, rounded or oblong. Dorsal tubercles in ten 

 to twelve (usually twelve) very regular series, tubercles large, juxta- 

 posed, trihedral, extending forward on nape. Occiput covered with 

 unequal granules. Mental large, two to four times the size of the 

 first infralabial. Submentals two to four, usually three. 



Peters' description of the dorsal tubercles and the three submentals 

 of the type fixes this species as the Albemarle form from which island 

 his specimens must have come. Garman does not distinguish clearly 

 between this form and P. bauri. The difference between the two 

 species is not one of number of rows of tubercles for these are varia- 

 ble in each but it is rather a difference in the size and number of the 

 tubercles, causing juxtaposition in the one and separation in the other. 

 Submentals usually more than two. Proportions the same as in P. 

 batcri. The present species approaches P. ttiberculosiis in the char- 

 acter of the dorsal tubercles but is smaller, differently colored, with- 

 out enlarged tubercles on the limbs, with smaller and rounded digital 

 pallets and with the enlarged scales on the inferior surface of the tail 

 not arranged in a single row. 



The species was found abundant at Iguana Cove under loose blocks 

 of lava near the coast and along dry creek beds. The small spherical 



