Fig. 407.— Roof of the skull ot a lizard (Varanid).— From a 



Specimen. 



PMX., Premaxilla; N.A., nasal aperture; MX., maxUla ; 

 PE., parethmoid; F., a foramen; A\ nasals ; FR., 

 frontals- PA., parietals ; PR.F., pre-frontal; ^.O., 

 supraorbital; /. Jugal ; ^^^L., posterior end opalatme 

 seen below ; O.T., os transversum or transpalatine, seen 

 below pry., pterygoid, seen below; PO.l'., post 

 ironui; Q., quadrate; SQ., squamosal; C, occipital 

 condyle ; S.O., supra-occipital. 



