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8 [[strikethrough]] 7 [[/strikethrough]]

[[strikethrough]] of the mastoid is much flatter [[insertion]] ^ and broader anterio-posteriorly [[/insertion]] than in the existing sea lions. [[/strikethrough]]

[[underline]] Palatines. [[/underline]] The palatal region is remarkable for the abbreviation of the bony palate, the [[strikethrough]] distance [[/strikethrough]] length from the hind margin of the latter to the posterior margin of the pterygoids immediately above the hamular process nearly equalizing the [[strikethrough]] distance [[/strikethrough]] length from the latter point to the occipital condyles. In existing genera the former [[strikethrough]] distance [[/strikethrough]] length is about half the latter, except in [[underline]] Otaria, [[/underline]] in which [[strikethrough]] the bony [[/strikethrough]] it is hardly more than a fourth. The skull [[insertion]] ^ of [[underline]] Pontoleon [[/underline]] [[/insertion]] is broken [[strikethrough]] as far as the [[/strikethrough]] opposite the posterior end of the bony palate, but [[strikethrough]] enough [[insertion]] ^ of the latter [[/insertion]] remains to in show the [[/strikethrough]] a small portion of the [[strikethrough]] latter of immediately [[/strikethrough]] posterior end remains on the left side. 
The vertical plates of the palatines [[insertion]] ^ are [[/insertion]] remarkably bulbous [[insertion]] ^ externally [[/insertion]] at the point marking the suture with the pterygoids [[insertion]] and alisphenoids [[/insertion]]. Below this swelling, a quite deep groove runs parallel with the inferior free margin of the wall of the nares. This [[insertion]] ^ groove [[/insertion]] is not present in [[underline]] Otaria, [[/underline]] but [[strikethrough]] marke [[/strikethrough]] is developed in a minor degree in [[strikethrough]] other [[/strikethrough]] [[underline]] Zalophus Arctocephalus [[underline]] and other existing genera.
[[underline]] Pterygoids. [[/underline]] The suture [[strikethrough]] of the [[/strikethrough]] between the pterygoids and palatines is obliterated. The posterior free margin [[insertion]] ^ of the former [[/insertion]] is emarginated, but much more nearly vertical than in existing genera, except [[underline]] Otaria. [[/underline]] The hamular processes appear to have been well-