250 SPHAERODACTYLUS. 
the head and neck these occur in definite straight series. Tail less distinctly 
spotted, coral-red below in life. ; 
Dimensions:— Tip of snout to vent 27 mm. 
Vent to tip of tail 25 mm. 
Greatest width of head 4.75 mm. 
Tip of snout to ear 6.5 mm. 
Fore leg 6.5 mm. 
Hind leg 8 mm. 
Remarks:— This stockily-built, short limbed, little species is one of the 
most abundant of the whole genus. I secured nearly an hundred at Constant 
Springs near Kingston and found it common at Mandeville, while years ago Dr. 
Henry Bryant collected it at Moneague. It was not found in the highland forests 
of the Blue Mountains where goniorhynchus occurs to the very summits. Meer- 
warth (Mitth. Naturh. mus. Hamburg, 1900, 18, p. 19) records a specimen of 
this species from Costa Rica saying that it does not differ in colour from Jamaican 
specimens, and hence differs from Werner’s type of what he called S. a. conti- 
nentalis (Verh. Zool. bot. ges. Wien, 1896, 46, p. 345; Honduras, Type in Petro- 
grad Mus. Sold by Schliiter, dealer of Halle). 
Sphaerodactylus argus may have been introduced to the mainland but no 
American collector has found it and I am inclined to believe that both Meer- 
worth and Werner had specimens of glaucus before them. 
19. SPHAERODACTYLUS CORTICOLUS Garman. 
Plate 56, fig. 4; Plate 18, fig. 1-4. 
Sphaerodactylus corticolus Garman, Bull. Essex inst., 1888, 20, p. 111. 
Type-locality:— Rum Cay, Bahamas. 
Types:— Cotyrrs. M. C., Z. 6,219. Four specimens. C. J. Maynard. 
Distribution:— Apparently rare it has been found on New Providence 
(M. C. Z.) and Watling’s Island (U.S. N. M.) besides the type-locality. 
Diagnosis:— Slender, medium size, the dorsal scales very small, keeled and 
imbricating, about ten or eleven equalling distance from tip of snout to centre of 
eye; scales of top of snout and vertex of nearly equal size, about eighteen in a 
series between the eye. 
Description:— The largest of the Cotypzs. 
Snout rather short, declivous and rounded; eye nearer tip of snout than ear; 
