240 COPE. [Vol. VII. 



ANNIELLOIDEA. 

 Anniellid^. 



Anniella pulchra Gray. PI. XIII, Fig. 7. From Southern 

 California. Not previously examined. 



Scapular arch wanting ; pelvic arch rudimental ; no limbs. 

 The pelvic arch is represented by a small and short rod-like 

 bone, which is attached to the extremity of the diapophysis of 

 a single vertebra. The proximal extremity is directed back- 

 wards for a short distance posterior to the point of suspension, 

 as in Anelytropsis. No traces of inferior elements or of poste- 

 rior limb. This is the most rudimental ilium yet encountered. 



ANNULATI. 

 Chirotid^. 



Chirotes canaliculatus Bonnat. PI. XIII, Fig. 12. Lower 

 California. Described and figured by Miiller, I.e., PI. XXI, 

 Figs. II, 12 ; and by Dumeril and Bibron, Erpetologie Gen&ale, 

 Atlas, PI. VII, Figs, i, 2 ; both with omission of pelvic arch. 



Scapular and pelvic arch present ; fore limbs, but no hind 

 limbs. 



Scapular arch. For the first time in the history of scapular 

 reduction, we find the clavicle absent. No interclavicle nor 

 procoracoid. Supraclavicle osseous. Clavicle and coracoid 

 osseous, coossified ; no coracoid cartilage. Sternum without 

 costals, osseous, pentagonal, and with a long xiphoid process. 

 Ulna and radius well distinguished. Pelvic arch an elongate 

 element on each side, directed downwards and a little forwards, 

 principally ihum, but with a short free distal extremity which 

 represents one or both of the inferior elements. A short curved 

 cartilage represents the femur. The ilium is connected by a 

 cartilage with the extremity of a single diapophysis ; and a short 

 free segment corresponding to this cartilage articulates with the 

 vertebra which follows. 



Observations. Miiller gives an excellent figure of the scapu- 

 lar arch of this species, but he says that the clavicle and scapula 

 are fused into a single piece. This is probably an error, as there 



