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BULLETIN 17 7, UNITED STATES NATIONAL MUSEUM 



the snout from supralabial to supralabial immediately in front of the 

 anterior border of the orbits ; scales covering the upper surfaces of the 

 body strongly keeled and imbricate ; ten scales on the side of the body 

 between the front and hind legs contained in the distance between 

 the tip of snout and center of eye. Longitudinal axis of mental a 

 third longer than same axis of rostral ; three enlarged infralabials, the 

 first a little less than twice as long as the second, the second a little 

 less than twice as long as the third. Scales on the ventral surface of 



the throat, chest, and sides of ab- 

 domen keeled; those on the middle 

 of the abdomen smooth, scales 

 gradually decreasing in size from 

 the infralabials toward the throat, 

 rapidly increasing in size immedi- 

 ately behind the throat ; the scales 

 on the chest and abdomen two to 

 three times as large as the scales 

 on the throat. A broad band of 

 keeled imbricate scales on the 

 outer surface of the fore limbs, 

 these scales nearly as large as those 

 on the chest; the other scales on the 

 fore limbs small and tubercular; 

 scales on the outer surface of the 

 upper segment of the hind limb 

 similar to the dorsals but smaller, 

 merging gradually into those of the 

 posterior surface of the leg which 

 are much smaller and tubercular; 

 scales on the ventral side of the 

 hind limbs (except for the hyper- 

 trophied preanal scales) keeled like 

 those on the sides of the abdomen, 

 but diminishing in size distally. 

 Scales on the dorsal surface of 

 the tail similar to the dorsal body 

 scales but about one-third larger 

 on the anterior part of the tail; ventral scales smooth, varying 

 considerably in size, the average scale measuring about one-third 

 larger than those of the abdomen. 



"Uniform dark brown above (in alcohol), slightly paler on the 

 snout and sides of the head; a dark streak from the rostral plate 

 through the eye and fading out on the temporal region; a pale, widely 

 opened V on the nape of the neck; two light spots on the scapular 

 region margined with a few spots of dark brown ; a few feeble spots of 



Figure 40. — Sphaerodactylus armstrongi: a, 

 Dorsum, showing color pattern; b, top of 

 head;r, chin; d, profile of head; e, middorsal 

 scales. A.M.N.H. No. 51469, paratype, 

 from near Paradis, Barahona Province, 

 Dominican Republic, a, X 2; b-e, X 4. 



