Vol. 1] VAN DENBURGH— GECKOS OF GALAPAGOS ARCHIPELAGO 419 



limbs, where enlarged tubercles are present ; digital expansions 

 well developed ; dorsal granules smooth, smaller than those on 

 snout ; mental a little longer than broad, usually in contact with 

 three postmentals ; ten or twelve lamellae under fourth toe. 



Type.— CrI Acad. Sci. No. 12057. Harrington Island, 

 Galapagos Archipelago. J. R. Slevin. July 10, 1906. 



Distribution. — Barrington Island, Galapagos Archipelago. 



Material. — This species is known from nine specimens, the 

 type and eight young, Nos. 10169-10172, 10212, and 10218- 

 10220 of the Academy collection. 



Description of the type. — Head elongate ; snout long, depressed, and 

 rather narrow, a little more than one and a half times as long as the 

 diameter of eye ; ear-opening small, with anterior denticulation of two or 

 three scales, slightly nearer than nostril to eye. Body and limbs moderate, 

 somewhat depressed, tail cylindro-conic. Snout covered with subequal, 

 smooth, flattened granules. Hinder part of head, temples, neck, and back 

 and sides of body covered with smaller, smooth, convex granules. No 

 enlarged tubercles except between insertions of hind limbs, where remains 

 of two or three rows may be made out on each side. Rostral much broader 

 than high. Nostril between rostral, first labial, and three nasals of which 

 the upper is largest and meets its fellow of the opposite side. Nine or ten 

 upper and eight lower labials. Mental large, a little longer than broad, 

 bordered behind by three postmentals, which are followed by polygonal 

 shields which gradually pass into the small granular gulars. Lower surface 

 of body covered with smooth, imbricate scales which change gradually into 

 the granular laterals and gulars ; about twenty to thirty longitudinal, and 

 sixty to seventy transverse series. Tail covered with whorls of small, 

 smooth scales, no inferior median series of broad plates. Limbs without 

 enlarged tubercles; digits slender, distal pads large, truncate; about ten or 

 twelve lamellae under fourth toe. 



Yellowish or brownish gray above, palest on head, irregularly spotted 

 and blotched with dark brown on head, neck, body, limbs, and tail. A 

 brown band runs from the nostril through the eye, and above the ear, to 

 the axilla. The lower surfaces are yellowish white faintly dotted with dark 

 brown. 



Length to anus 4L 



Snout to orbit 4.6 



Snout to ear 10.5 



Orbit to ear 3.8 



Fore limb 13. 



Hind limb 17.5 



Base of fifth to end of fourth toe 4.1 



Variation. — All the specimens agree in the possession of the 

 few scattered enlarged tubercles between the hind limbs. 

 These are not prominent and in small specimens may easily be 

 overlooked. No. 10171 has but two postmentals touching the 



