SYSTEMATIC ACCOUNT OF THE SPECIES. 127 



minute granules and the belly-scales are large and smooth. The tail is long 

 and slender with round, overlappmg, smooth scales above and below. 



Description: — Adult 9 M. C. Z. 12,304. Cuba: Camaguey; Sierra de 

 San Juan de los Perros. Thomas Barbour. 



Snout pointed and elongate, the distance from the tip to the eye being 

 distinctly longer than that from the eye to the ear opening; rostral moderate 

 with a long median cleft behind; nostril between rostral, first supralabial, a 

 large supranasal and two small postnasals ; supranasal separated from its fellow 

 on the opposite side by a smgle roughly hexagonal scale about two thirds the 

 size of one of the supranasals, the three bordering the rostral above; four large 

 and two small supralabials to below the centre of the eye; a spine on the super- 

 ciliary margin over the centre of the eye; head above and on sides with ex- 

 tremely minute granular scales; scales of the snout distinctly enlarged and 

 flattened; scales on back very large (comparatively speaking), heavily keeled, 

 imbricate, giving a rough appearance; about seven in the distance from the tip 

 of snout to ear ; the change from the cephaHc granules to the large dorsal scales 

 is gradual; a very narrow median zone of very small scales, most conspicuous 

 on the nape and shoulder region; mental large, larger than rostral; two very 

 large infralabials and two very small ones to below the centre of the eye; two 

 small, slightly elongate chin shields behind the mental, followed by small flat 

 scales which gradually become the tiny scales of the midgular region; scales of 

 chest and throat rounded, imbricate, smooth, rather large, not however as 

 large as the dorsals; scales of Umbs much smaller, imbricate, smooth or feebly 

 keeled; scales of tail small, rounded, slightly elongate, imbricate, smooth, a 

 rather inconspicuously enlarged series on the lower median surface of the tail. 



Colour (in fresh specimen) : — Uniform iron-gray above, pale below in the 

 male, and in the female the ground-colour is bluish or stone-gray crossed on the 

 nape, shoulders, and body by pairs of black bands; between these pairs of bands 

 there are also cross-series of dark dots. In the yovmg the pairs of bands are 

 broad and conspicuous but the intermediate series of dots are absent. 



Dimensions: — • Total length 58 mm. 



Tip of snout to vent 32 mm. 



Vent to tip of tail 26 mm. 



Greatest width of head 5 mm. 



Tip of snout to ear 7 . 5 mm. 



Fore limb 8 mm. 



Hind limb 11 mm. 



