28 



pnocin.T:. 



nearly perpendicularly, with a notch at the hinder end, as shown in 

 /, fig. 9. In Phoca harhata the Ibnn of the lower jaw and ramns is 

 nearly similar ; but instead of a notch near the angle, the inner edge 

 is produced inwards into a rounded lobe (b, fig. 9 ; and see Cat. Seals 

 B. M. p. 27. f. 9). 



Fio-. 9. 



a. Skull of Halicyon liicharcli. 



b. End of lower jaw of Phoai barbata, to show the dilatations and 



inflexious of the lobe over the angle. 



c. End of the lower jaw of Paf/omj/s faiidus. The end of the jaw of 



CaUoccphuhis vitulimis is somewhat similar. 



d. liower edge of the lower jaw of ILtUcyoii Pichanli. 

 (>. I>ower edge of the lower jaw of Phoat barbata. 



f. Lower edge of the lower jaw of Patjophilun GraithDuJicufi. Tlie jaw 

 of Pagoinys fcutklus is somewhat similar, hut much smaller. 



In CallocephaJas vituliinis and C. (Paf/onii/s) futidns, on the con- 



