Vol. 1] VAN DENBURGH— GECKOS OF GALAPAGOS ARCHIPELAGO 411 



Wreck Bay, Chatham Island. It has not been found by any 

 other collector, although the members of our expedition 

 searched carefully for it, and collected a hundred and sixty- 

 nine geckos on Chatham Island. The fact that Dr. Baur 

 secured four specimens indicates that the species was not very 

 rare where he got it, and the failure of all other collectors to 

 secure it in the Galapagos makes one wonder whether Dr. 

 Baur's specimens might not have originated at Guayaquil, 

 where he also collected, and have been in some way mislabeled. 

 I quote Dr. Carman's original description: 



"Head moderate; snout obtusely pointed, longer than the distance 

 between the eye and the ear opening, one and one-half times the diameter 

 of the orbit, equal the width of the crown at the hinder edge of the orbit ; 

 forehead flat; ear-opening small. Digits slender; basal joint slender, sub- 

 cylindrical, with larger plates beneath; other joints more slender, com- 

 pressed. Head, throat, upper portions of body, limbs and tail covered with 

 subequal granular scales, smallest on the occiput, larger on chin and tail. 

 Rostral broader than high, pentagonal, incised on the top. A small inter- 

 nasal toward each side. Two small shields behind the nostril. Six labials ; 

 sixth small, sHghtly behind the middle of the eye. Five infralabials ; 

 posterior nearly reaching a vertical from the hinder border of the eye; 

 first large, in contact with two submentals ; mental large, with a median 

 and two lateral angles posteriorly, in contact with a pair of moderate 

 submentals, at each side of which there is one scarcely half as large, from 

 which again a diminishing series of three or four passes back along the 

 infralabials. Abdominal scales moderate, imbricate, heptagonal, flat, sim- 

 ilar to scales in front of thighs and arms. Tail tapering, subround, covered 

 with small imbricate scales above and larger ones beneath. The median 

 row under the tail is subject to great variation : on two of the specimens 

 the scales are about twice as broad as long; on two others they are so 

 broad as to reach from side to side of the tail. The granules of the throat 

 are fine, quite as small as those of the occiput; near the labials and sub- 

 mentals they rapidly increase in size. 



"Body and Hmbs dark brownish ; back darker, with numerous small 

 spots of light blue. A dark-edged spot of the blue above the shoulder. In 

 front of each shoulder there is a vertical band of bluish that does not reach 

 the median line on the top of the neck. Along the vertebral line the back 

 is lighter, and along this light band there are five pairs of dark spots, and 

 at the hinder edge of each of these spots there is a smaller one of the 

 light color. The first pair of the spots lies transversely in front of the 

 vertical band, the second behind the shoulders, the third near the middle 

 of the body, the fourth in front of the leg, and the fifth across the base 

 of the tail. 



"Chin and throat yellow to orange. Top and sides of head brown ; with 

 a yellow band from the angle of the mouth to the nape, another from the 

 eye to the parietal region, and a third from the nostrils backward over the 

 supraorbitals. On the crown the disposition of the yellow is irregular, but 

 on each specimen there is a short median streak of the light color. 



"This form is very closely allied to Gray's species G. ocellafus from 

 Tobago. The principal differences seem to be in the coloration. The 

 vertical streak is in front of the shoulder, and to reach the latter would 

 have to turn back at its lower end. The head is not so high, and the 

 outline from rostral to occiput is very slightly but quite regularly curved. 



