228 SPHAERODACTYLUS. 
so that very close examination reveals a fine reticulate appearance, tail yellow. 
Colour singularly unvarying (Field notes). These males were the types of S. 
flavicaudus Barbour. 
Colour:— Female. Brilliantly cross-banded with pairs of wavy cross-bars; 
the nuchal band usually very wide and dark and including a pair of white spots. 
Tail boldly ringed with black and white. 
Dimensions:— Tip of snout to vent 30 mm. 
Vent to tip of tail 268mm. 
Greatest width of head 6mm. 
Tip of snout to ear (25) moms 
Fore leg 8 mm. 
Hind leg 10 mm. 
Remarks:—I had supposed that decoratus and flavicaudus were distinct 
species. I had long known that they were very similar in squamation, I find now, 
however, that some specimens of each type are absolutely the same in squama- 
tion. The colour shows a sex-linked dichromatism such as is so conspicuous in 
picturatus, scaber and perhaps many other species of which now we only know 
one sex or the other. It may be looked for in anthracinus for example. 
- The species is rare on New Providence where only the banded females have 
been taken, so also on Rum Cay. Mr. Owen Bryant, however, found both sexes 
common in chinks and crannies of walls and houses at Mangrove Cay, Andros 
Island. In 1911 Dr. Rosén (Lunds univ. arsskrift, 1911, n. f. sers. 2, 7, no. 5, 
p. 27) recorded its presence at Mastic Point also in Andros Island. Otherwise, 
it has not appeared in the literature. Its origin is probably to be traced to the 
Cuban torrez or to the immediate ancestors of that species. 
2. SPHABRODACTYLUS GIBBUS, Sp. Nov. 
Plate 1, fig. 2; Plate 10, fig. 5-8. 
Type-locality:— Stocky Island, Exuma Cays, Bahama Islands. 
Types:—Trps. M. C. Z. 13,486; Paratypes M. C. Z. 18,435, 13,487. 
C. J. Maynard. 
Distribution:— The Exuma Cays. Maynard found it on Stocky Island and 
on asmall Cay opposite Roseville, Exuma Island. 
Diagnosis:— Heavily built, stocky, coarsely spotted with large dots; the 
