EXPLANATION OF PLATE 23. 

 Leptocheirus zitteli n. gen. and sp. 



Figures reproduced natural size from the type specimen. 

 Fig. 1.— Right side of skull. 



Fig. 2. — Cross -section of posterior portion of the lower jaw, taken above 

 the point marked A on the lateral view of the skull. 



Fig. 3. — Cross-section of the upper and lower jaws, taken at the break 

 immediately behind the point marked Sp on the lateral view 

 of the skull. 



Fig. 4. — Lateral view of an anterior caudal centrum. 



Legend for Figures 1, 2, and 3. 

 L, lachrymal. Se, sclerotic ring. A, angular. 



Mx, maxillary. D, dentary. Ar, articular. 



J, jugal. Sp, spenial. X, doubtful element. 



Po, postorbital. Sa, supra-angular. T, cross-section of tooth. 



