SYSTEMATIC ACCOUNT OF THE SPECIES. 177 
known, while in Cuba, since there is but a single species and that a very rare one, 
there are but few, and those only among the more observant country people, 
who know and fear it. 
The locality records for the comparatively few specimens which have 
reached museums and which have borne full data make it appear that the 
species occurs throughout the Island. 
XANTUSIIDAE. 
50. CricoLeris typica (Gundlach «& Peters). 
Plate 4, fig. 2; Plate 11, fig. 1. 
Diagnosis: — A very small, short limbed ground-lizard; with a long fleshy 
tail; large plate-like scales on the head and extremely small, even, rounded seales 
in transverse series all over the upper surface of body, and series of squarish 
scales on the tail; lower surfaces with rows of larger scales. 
Description: — Adult M. C. Z. 8,512. Cuba: Cabo Cruz, near the light- 
house, Spring of 1913. Thomas Barbour. 
Rostral pentagonal forming an obtuse angle behind; nostril pierced be- 
tween two nasals; anterior nasals in contact behind the rostral; a pair of squarish 
frontonasals and a similarly shaped pair of slightly larger prefrontals; frontal 
large, heptagonal, the posterior region expanded; four supraoculars, first very 
small, third largest; a large interparietal with straight edge next the frontal, 
bulging or rounded sides and an obtuse angle behind; a small frontoparietal 
on each side, between the supraoculars, the frontal, the interparietal, and a 
large temporal, which forms a suture with the interparietal and the parietal; 
two loreals, second larger; temporal region with slightly enlarged flat scales 
of irregular shape, mosaiced in a pavement-like manner; seven upper labials; 
mental a trapezoid, followed by a heptagonal postmental and three large chin- 
shields on each side, the first pair forming a long suture; lower labials about 
equal in size to upper. A strong ring-fold separates head from neck; the 
gular scales anterior to the fold slightly enlarged, flat, squarish to roundish, 
those between the fold and collar generally roundish and slightly less flat. 
Seales of upper surfaces small, equal, granular in transverse series; ventrals 
much enlarged, square, forming eight (six large and two smaller) longitudinal 
rows and twenty-six transverse series. Four square preanals, posterior pair 
larger. Limbs weak; digits short with two rows of minute tubercular scales 
