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



lateral dorsal granules much larger than median ones ; enlarged 

 tubercles on neck but not on occiput; two postmentals; sub- 

 caudals considerably enlarged transversely. 



Type. — Adult male. Leland Stanford Junior University 

 Museum No. 4549. Wenman Island, Galapagos Archipelago, 

 Hopkins-Stanford Expedition. December, 1898. 



Distribution. — Wenman Island, Galapagos Archipelago. 



Material. — The Hopkins-Stanford Expedition secured at 

 least nine specimens. The California Academy has thirty-two 

 of these geckos from Wenman Island, collected by Mr. Joseph 

 R. Slevin, Sept. 24, 1906. 



Description of the type^ — Dorsal tubercles small, two or three times the 

 size of the dorsal granules, rounded, juxtaposed, and feebly keeled, in five 

 longitudinal series on each side of sacral region ; back and nape crossed by- 

 four rows, the three outer rows on each side disappearing before reaching 

 middle of back. Rows of tubercles separated by two or three rows of 

 granules; tubercles in the rows juxtaposed with few exceptions. Digital 

 pallets wide, four times width of rest of digit, nearly two thirds the 

 diameter of eye, trapezoid. Fourth toe with fourteen transverse lamellae 

 inferiorly, the distal one divided. Head large, one half as long and two 

 thirds as wide as the body. Ear-opening elliptical, obhque, two thirds the 

 diameter of eye. Snout rounded at tip, the dorsal profile oblique, length 

 slightly less than twice the diameter of eye. Interorbital region more or 

 less concave ; occipital region flat. Limbs moderate, the appressed fore 

 limb reaching anterior border of eye; hind limb reaching appressed elbow. 

 Head covered above with equal granules, smallest on occiput, becoming 

 gradually larger anteriorly. Nostril situated between rostral, first superior 

 labial, internasal and two posterior nasals. Internasals contiguous. Ros- 

 tral twice as broad as high, slightly pentagonal with a median cleft above, 

 bordered dorsally by two internasals. Mental subtriangular, longer than 

 wide with obtuse angle posteriorly, followed by two hexagonal submentals. 

 Superior labials six before middle of pupil, twice as long as high ; five 

 inferior labials anterior to middle of pupil, as high as long, first largest 

 and more than two thirds size of mental. Belly and lower surfaces 

 covered with smooth, rounded, imbricate scales; forty-five transverse 

 series between axilla and groins. Tail of type imperfect. In younger 

 specimens the tail is cylindrical, tapering gradually, covered above and on 

 sides with imbricate, keeled scales about size of dorsal tubercles ; covered 

 inferiorly with a median series of enlarged scales. 



Above (in life) pinkish gray with dusky blotches and spots; a median 

 light pinkish stripe from nape to tail forking into several faint narrow 

 cross-bars on back. Head lighter grayish with irregular dusky blotches 

 above, snout faintly dusky-spotted, labials more heavily spotted, a dusky 

 stripe beginning at tip of snout, passing through eye above ear-opening and 

 becoming obsolete on shoulder, 'widest and most distinct just posterior to 

 eye; sides lighter, dusky, spotted. In perfect specimens the tail is light 

 hke the head, the dark cross-bands narrower than the light areas and 

 anteriorly broken up into spots. Limbs above barred and blotched with 

 dusky. Underparts cream or whitish, the scales with minute dark dots. 



» Heller. 



