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



Systematic Account 

 Key to Galapagoan Species of Geckos 



a. — Digits without dilated pads. 



Gonatodes collaris. — p. 410. 

 a^. — Digits dilated distally and furnished inferiorly with two large plates, 

 b. — Limbs with scattered enlarged tubercles. 



Phyllodactylus tuberculosus. — p. 412. 

 b^. — Limbs covered above with nearly uniform granules. 



c. — No rows of enlarged dorsal tubercles on back between levels of 

 fore and hind limbs, 

 d. — No enlarged dorsal tubercles between hind limbs. 



Phyllodactylus leei. — p. 416. 

 d^. — Enlarged dorsal tubercles present between hind limbs. 



Phyllodactylus barringtonensis. — p. 418. 



c^. — Back with rows of enlarged tubercles between levels of fore 



and hind hmbs. 



dd. — Median series of subcaudals enlarged transversely; a 



median dorsal band of granules distinctly smaller thah 



laterals and usually lighter in color; enlarged dorsal 



tubercles much smaller; rows less distinct and fewer 



than five on each side except on sacrum. 



Phyllodactylus gilberti. — p. 413. 

 dd^. — No median series of large subcaudals ; no distinct mid- 

 dorsal light band of smaller granules ; dorsal rows of 

 enlarged tubercles five or six on each side ; very distinct, 

 e. — Tubercles in dorsal rows usually separated by at least 

 their own length ; postmentals two. 



Phyllodactylus bauri. — p. 426. 

 e^. — Tubercles in dorsal rows usually separated by less 

 than their own length, or by not more than one 

 small granule; postmentals usually more than two. 

 f. — Tubercles in upper dorsal rows set as closely as in 

 other rows. 

 g. — Tubercles of some dorsal rows continued on 

 neck anterior to insertion of fore hmbs ; 

 snout shorter; dorsal rows of tubercles 

 usually six on each side (rarely five). 

 Phyllodactylus galapagoensis. — p. 420. 

 g2. — Tubercles of dorsal rows absent on neck an- 

 terior to insertion of fore limbs ; snout 

 longer ; dorsal rows of tubercles five on 

 each side. 

 Phyllodactylus g. daphnensis. — p. 425. 

 f2. — Tubercles in upper dorsal rows set less closely, 

 usually separated by two or more granules. 



Phyllodactylus g. duncanensis. — p. 426. 



Gonatodes collaris Garman. 



Gonatodes collaris, Garman^ Bull. Essex Inst., XXIV, 1892, p. 83 (type 

 locality Wreck Bay, Chatham Island) ; Heller, Proc. Washington Acad. 

 Sci., V, 1903, p. 60. 



This gecko is know only from Garman's description based 



upon four specimens collected by Dr. George Baur, and labeled 



