SYSTEMATIC ACCOUNT OF THE SPECIES. 251 



rostral wide with median groove; nostril between rostral> first supralabial, a 

 large supranasal and two small scales; a single large scale between the two 

 Bupranasals; suture between third and fourth supralabial beneath centre of eye; 

 superciliary spine present; head above and on sides covered with small, juxta- 

 posed, granular scales very little if any enlarged on the snout; nuchals similar; 

 dorsals slightly enlarged, keeled, slightly imbricate, about eleven or twelve equal 

 to the distance of tip of snout from centre of eye; mental medium, followed by a 

 few enlarged postmentals; the third, a very small, infralabial beneath centre of 

 eye; gular scales small, granular, juxtaposed and smooth; chest and belly cov- 

 ered with larger, imbricating smooth scales ; Umbs covered with very small, keeled 

 scales; tail covered with very small scales not in whorls, large plates below. 



Colour: — Males uniform brown, flecked very indistinctly with darker; belly 

 slightly paler; a female (M. C. Z. 13,452) brown with lines of light dots, distinct 

 on head and neck but fading on body. 



Dimensions: — Tip of snout to vent 30 mm. 



Vent to tip of tail 7 mm. 



Greatest width of head 5 mm. 



Tip of snout to ear 7 . 5 nrni. 



Fore leg • 7 mm. 



Hind leg 9 mm. 



Remarks: — I have never had the good fortune to find this gekko in the 

 Bahamas nor did Dr. Rosen record it. Mr. Maynard has taken five of the six 

 specimens so far known but I know nothing of its habits or occurrence in nature. 

 It is related to nigropunctatus of Cuba. 



20. Sphaerodactylus gilvitorques Cope. 

 Plate 6, fig. 1; Plate 18, fig. 5-8. 



Sphaerodactylus gilvitorques Cope, Proc. Acad. nat. sci. Phil., 1861, p. 500. 



Type-locality: — Jamaica. 



Type:— Academy Natural Sciences Phil. 7,555. E. W. Pennock. 



Distribution: — Jamaica. The species has not been found by any recent 

 explorer so far as I am aware. It has certainly not appeared in any of the con- 

 siderable number of Jamaican collections which have come to the M. C. Z. 



Diagnosis: — Small, stocky, with very large keeled unbricating dorsals of 

 which only about four equal the distance of tip of snout to centre of eye, no mid- 



