BY C. W. DE VIS, M.A. 57 
the simple squamation of its lower eyelid, the subrhomboidal 
form of its nasal, the non-triangular shape of its interoccipital, 
the unequal length of its toes, and the total closure of its aural 
orifice. We are therefore constrained to give it, provisionally, 
at least, a place and binomial of its own. 
SCINCIDA. 
LYGOSOMINA. 
CALYPTOTIS, 1.g. 
Habit, elongate, subcylindrical ; limbs, distant, weak; toes 5/5 
short, unequal, clawed; ear orifice, none; lower eyelid, scaly; 
supranasals, none; scales, smooth; nasals, lateral, distant, in a 
subrhomboidal shield. 
CALYPTOTIS FLAVIVENTER. 
Head, subtriangular, broader posteriorly than the neck, which 
is rather long. The rostral shield rises with an obtuse angle on 
the muzzle to the level of the fore-edge of the nasal orifice. 
The nasal orifice is round, and in the middle of the nasal shield. 
The prefrontal is long, covers the muzzle behind the rostral, 
and joins the loreal laterally with a long, straight suture. The 
base of the frontal is undulated to occupy the concave posterior 
edge of the prefrontal; its sides converge to an acute posterior 
angle. The parietals are trapeziums; the interoccipital is 
moderately large. lLabials, 6/6. Two large temporals, the 
anterior descending between the fifth and sixth labials. Mental, 
large, succeeded by four pairs of submandibular shields, of which 
the anterior pair are mesially conjoined. There are twenty-two 
rows of scales at the middle part of the trunk. The scales of 
the back and belly are subequal and hexagonal. The mesial row 
of subcaudals is larger than the others. The preanals are but 
slightly, if at all, enlarged. The distance between the limbs is 
rather more than twice that of the fore-limb from the tip of the 
snout. The length of the hind limb is rather more than one- 
third of the distance between the limbs. Tail considerably 
longer than the body and head together, but variable in length. 
