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EXPLAJSTATIOIv OF PLATE LXXII. 



aZs.^alisphenoid. ,/'/.=floccular fossa. 



6i. = basitemporal platform. ,/)•. = frontal. 



b.oc. = basi occipital. h.pt. — hemiplerygoid. 



6.s.=:basisphenoid. ?/.=lachrymal foramen. 



6.sr.=:parasphenoidaI rostrum. 7«e. = meatiis iiiternus. 



(-'.— occipital condyle. Mes.=mesethmoid. 



6'.^. = cerebellar prominence. ?«. = nasal. 



c.r. = coronal ridge. n.pmx. =na.3a\ process of premaxilla. 



£^.=:dentary. op.o. = opi3thotic. 



ep.o. = epiotic. ^.=parietal. 



«x.o.=exoccipital-. J3a.= palatine. 



