244 SPHAERODACTYLUS. 
Diagnosis:— Small, dark brown, with somewhat enlarged, elongate, keeled, 
imbricate dorsal scales about fourteen or fifteen equalling distance of tip of snout 
from centre of eye; no middorsal zone of small scales, upper head scales very 
minute, scales on snout slightly more elongate but scarcely wider than those of 
vertex; supranasals widely separated by about five small scales. Ventrals 
keeled. 
Description:— M. C, Z. 13,594. Jamaica: Constant Springs, near Kingston, 
1909. Thomas Barbour. 
Snout very short, rather rounded; eye distinctly nearer tip of snout than ear; 
rostral large with long median groove; nostril between rostral, a small supra- 
nasal and two or three small scales which may or may not occlude the nostril 
from the first supralabial; supranasals of either side separated by a considerable 
number of very small granules which fill a shallow reéntrant area in the posterior 
part of the rostral; suture between third and fourth supralabial below the centre 
of the eye; superciliary spine present; top and sides of head covered with ex- 
cessively fine granules not or scarcely enlarged on snout; dorsals very small, 
keeled, slightly imbricate, about fourteen equalling the distance of tip of snout 
from centre of eye; mental large followed by many small, scarcely enlarged post- 
mentals; throat-scales round juxtaposed. Ventrals slightly larger than dorsals, 
imbricate, feebly but distinctly keeled; limbs also with very small overlapping 
keeled scales; scales of tail likewise all excessively small, keeled and not arranged 
in whorls; greatly enlarged plates below. 
Colour:— Rich mahogany-brown; a usually very distinct dark middorsal 
zone composed of confluent rhombs, those on tail often separate; often a light 
line along upper sides of the upper proximal half of tail. 
Dimensions:— Tip of snout to vent 22 mm. 
Vent to tip of tail 20 mm. 
Greatest width of head 3.25 mm. 
Tip of snout to ear. 5 mm. 
Fore leg 5.75 mm. 
Hind leg 8 mm. 
Remarks:— A beautiful and always very tiny little lizard; widespread in 
Jamaica and everywhere rare. It is invariably found in wooded country and in 
the heavy forests of the Blue Mountains it occurs right to the summit of the high 
wooded peaks. It was frequently caught when tearing up rotten logs in search- 
ing for Peripatus, although more of the latter than of the sphaerodactyls were 
