SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



measure 40 mm. in length ; arches low with thin flattened spinous pro- 

 cesses ; centra broadly rounded transversely, without lateral cavities ; 

 ends of centra slightly biconcave throughout the series. Anterior 

 and median caudals about same length as dorsals mentioned above. 

 Median caudals have sides of centra bisected by a sharp longitudinal 

 ridge. 



Fig. 1. — Cervical vertebra of These elosaurus neglectus. Paratype. Cat. No. 

 7758 U. S. N. M. about 2 /z nat. size. Viewed from left side. a. syg, anterior 

 zygapophysis ; d, diapophysis ; p, parapophysis. 



The back of this animal is strengthened by ossified tendons extend- 

 ing along either side of the neural spines from the median dorsal 



Fig. 2. — Left scapula of Thescelosaurus neglectus. 

 U. S. N. M. V2 nat. size. Viewed externally. 



Paratype. Cat. No. 7758 



region nearly to the .tip of the tail. A cervical pertaining to the para- 

 type No. 7758 (see fig. 1.) shows the sides of the centra below the 

 neuro-central suture to be pinched in. but to a less degree than in the 

 cervicals of Camptosaurus. Ventrally there is a broad, flat, roughened 



