COAL-MEASURE STEGOCEPHALIAN. 951 



horns, formed entirely by the squamosals and tabulai^es, and 

 the correspondingly large size of the post-parietals. 



The extremely small size of the nasals is an interesting feature. 



The sutures separating the lachrymals from the premaxillse are 

 not cei-tain, but there is a separation and displacement of the 

 bones at the dotted line which has probably taken place along 

 the suture. 



Text-fig. 163. 



Batrachiderpeton lineatum. , Ventral aspect of tlie restored skull and clavicular 

 apparatus. X li. Skull mainl j^ from specimen I., sutures from specimen III., 

 clavicles, etc., from specimen III. 



Reference letters as before with: — Qu., Quadr.ite; Pal., Palatine ; Pae.Oc, Par.> 

 occipital process; Pae.Sp., Farasphenoid ; Pk.Y., Prevomer; Pt., Pterygoid, 



