236 COPE. [Vol. VII. 



No limbs ; Herpetoseps Blgr. 



2. Supranasals present; first upper labial entering the nostril. 

 * Nostril pierced between the rostral, the supranasal, the postnasal, and the 

 first labial ; no frontoparietals. 

 Digits 5-5 ; Mesomycterus Cope. 



Digits 4-4 ; Rhinoscincus Peters. 



Digits 3-3 ; Sepsina Bocage. 



No fore limbs ; hind limbs undivided ; Dumerilia Bocage. 



** Nostril pierced between the rostral, the supranasal, and the first labial ; 

 frontoparietals present. 

 Limbs absent ; Sepophis Bedd. 



3. No supranasals ; nostril entirely in the rostral. 

 Digits 4-4 ; Chalcidoseps Blgr. 



Chalcides lineatus Leuckart. PI. XIII, Fig. 8. Not pre- 

 viously examined, but the closely allied C. tridactylus is described 

 and figured by Fiirbringer.i 



Scapular and pelvic arches present. Limbs of both pairs 

 present, very short, with digits 3-3. 



Scapular arch. All the elements present, and presenting the 

 true characters of the Leptoglossa ; viz. clavicles distally dilated 

 and perforate, and interclavicle cruciform. The scapula and 

 coracoid are fused and osseous. The coracoid cartilage en- 

 closes a coracoid foramen, and coraco-procoracoid foramen with 

 the cartilaginous procoracoid. Suprascapula large, cartilaginous. 

 Sternum well developed, with cartilaginous borders, no foramen, 

 and four costal articulations. 



Pelvic arch. All the elements present, but slender; the 

 inferior arches directed anteriorly ; the pubes in contact distally. 

 The ischia are separated by a narrow membrane, which extends 

 forward to the pubic symphysis. The ilium stands nearly 

 vertical, its inferior portion articulating with the distally fused 

 extremities of the diapophyses of two vertebrae. Except in the 

 slenderness of its parts, the pelvis is like that of Scincidae with 

 well developed limbs. 



Fiirbringer represents only three sterno-costal articulations in 

 the C. tridactylus. 



AcONTIIDiE. 



EvESiA MONODACTYLA Gray. PL XIII, Fig, 9. From 

 Ceylon. Not previously examined. 



1 Loc. cit., PL I, Fig. 3; PI. Ill, Figs. 26-7. 



