DE. J. MUKIE ON THE ANATOMY OY THE SEA-LION. 575 



Fig. 14. Side view of skull, No. 3971 b, College-of-Surgeons Museum, said by donor, 



Captain Sullivan, to be that of a " yearling." 

 Fig. 15. Same skull as seen from above. 

 Fig. 16. Profile of a female skull, No. 3968, Osteol. Cat. Roy. Coll. Surg. Presented 



by Admiral Beaufort, C.B., F.R.S. 

 Fig. 17. Upper view of ditto, exhibiting roughening or commencement of occipito- 

 parietal crests. 

 Fig. 18. Side view of skull of the mounted skeleton, No. 3971 a, Roy. Coll. of Surg. 

 Collection. This with the above crania, figs. 12-14, are each from the 

 Falkland Islands. Attested by Captain Sullivan of H.M. ship ' Philomel,' 

 and referred to in a letter, 21st May 1844, as male of the Hair Seal, Sea- 

 lion, not full grown. Vide interleaved Catalogue and Minutes of Museum 

 Committee, 30th August, 1844. 

 Fig. 19. Upper surface of skull, figured 18: B marks a bullet lodged between the 



frontal and root of nasal bones. 

 Fig. 20. Skull of a large and old Otaria jubata, from Dungeness Point, S.E. Patagonia, 

 12th January, 1867. Presented to the Hunterian Museum by the Admiralty, 

 1868, and in the College Catalogue numbered 3971 E. 

 Fig. 21. The same skull, minus the mandible, hi bird's-eye view, or from above. 



The letters *, a, b, c, in figs. 21, 20, 19, & 18, respectively indicate extraneous pro- 

 cesses and crest, developed and most marked as age advances. 



Fig. 22. A longitudinal mesial section of an aged skull in the College-of-Surgeons 

 Museum (No. 3971, Cat.), to show the interior brain-cavity, ethmoidal bones, 

 &c. : c, great occipital crest ; tent, bony tentorium, separating cerebral and 

 cerebellar areas ; ex, exoccipital foramen ; pn, posterior nares. Fr, frontal, 

 Eth, ethmoid, and Tb, turbinal bones. 

 Fig. 23. Under view of pelvis, last two lumbar, and the sacro-caudal vertebrae of the 

 Zoological Society's male Otary. The parts are united by ligament and the 

 intervertebral cartilages : about f nat. size. L, lumbar transverse processes ; 

 c, intervertebral cartilage ; I, ilium ; S, sacrum ; P, pubis. 

 The separate drawings between figs. 24 and 37 are two views of each of the bones 



composing the left carpus and tarsus of the male central skeleton, fig. 11. 

 Fig. 24. Conjoined scapho-lunar bone, as seen from above (A) and below (B) : d, upper 

 or dorsal surface ; r, radial articular face ; tz, anterior facet, which articulates 

 with the trapezium and trapezoides ; p, lower or palmar surface ; m, facet for 

 os magnum ; uc, unciform facet. 

 Fig. 25. Cuneiform, (A) its postero-outward and (B) antero-inner faces : ag, upper 

 hinder, and ag*, lower front angle of the bone ; ul, ulnar fossa ; m 5 , facet for 

 fifth metacarpal; r, radial facet; uc, unciform facet; d, narrow upper or 



dorsal surface. 



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