250 SPHAERODACTYLUS. 



the head and neck these occur in definite straight series. Tail less distinctly 

 spotted, coral-red below in life. 



Remarks: — This stockily-built, short Umbed, Uttle species is one of the 

 most abimdant 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. IVIeer- 

 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. 346; 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 incUned to beUeve that both Meer- 

 worth and Werner had specimens of glaucus before them. 



19. Sphaerodactylus corticolus Garman. 

 Plate 6, fig. 4; Plate 18, fig. 1-4. 



Sphaerodactylus corticolus Garman, Bull. Essex inst., 1888, 20, p. 111. 



Type-locality: — Rum Cay, Bahamas. 



Ti/pes.-— CoTYPES. 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 Cotypes. 



Snout rather short, declivous and roimded; eye nearer tip of snout than ear; 



