^40 



On the. Genus Lysoropliu?, Copt^. 



P Fr ■ r—-^ 



Sp.E.-- 



Art. 



A B 



Traosvprse sections of skull of Lysorophus, to sLoav the s])lienethiiioid and 

 " alisphenoid " bonet<. 



A. Sphenethmnid : 7V.. frontal ; Pa.jS'., parasphoiinid ; P./'V., prefiuiital ; 

 i-Y., pterygoid ; Sp.E.^ splienethiuoid. B. '' Alisplienoid " (^■l.»S'.') : 

 Art., articulare of lower jaw ; Pa., parieful ; (iu., quadrate. 



Fig. 5. 



Pr.At, 

 Thre^ horizontal sections superposed. 



Vo., vomers ; Pr.Of., pro-otic ; Sq., gquamosal ; S.o., 8upra-occipitaI ; 

 ^.0., exoccipital ; Tafe., tabulare ; ZV.^l/., pro-atlas. 



