LIrtT OF PLATES. 405 



Plate X. 



Fig. 1. Liolctmus gravenJiorstii, Graj', p. 142. 



1 a. , upper view of head, x 2. 



2. fuscus, BlgT., p. 144. 



2 a. . upper view of head, x 2. 



3. occipitalis, Blgr., p. 156. 



3 a. , upper view of head, x 2. 



Plate XI. 



Liocephalus aculeatus, 0"Sh., p. 167; and upper view of head. 



Plate XII. 

 Lioceplialus ornatus, Gray, p. 168 ; and upper view of head, X Ig. 



Plate XIII. 

 Liocephalus guentlicri, Blgr., p. 169 ; and upper view of head. 



Plate XIV. 



Pig. 1. Platysaurus guttahis, Smith, p. 262. 

 2. Sauresia sej)oides, Gray, p. 295. 

 2 a. , upper view of head, x 2. 



Plate XV. 



Fig. 1. O^Msauncs gracilis, Gray, p. 283; upper view of head 

 and anterior part of body. 

 1 a. , lateral view. 



1 b. , upper view of head, x 2. 



2. l-oelWceri, Gthr., p. 283 ; upper view of head 



and anterior part of body. 



2 a. , hitcral view. 



2 h. , upper view of head, x 2. 



