EXPLANATION OF THE PLATES. 



Plate I. Skull of Callocephalus vitulinus, adult. 



II. „ Halicyow Eichardsi, adult. Japan. 



III. ,, Fagomys fmtidus. 



IV. „ Pagophilus grcenlandkus. 

 V. ,, Phoca harhata, adult. 



VI. ,, Monachus albiventer. 



VII. „ HaUchoerus grypus, jnn. 



VIII. „ Stenorhyjichits leptonyx. 



IX. „ Lobodon carcinophaga. 



X. „ Leptonyx Weddellii. 



XI. ,, Ommafophoca Rossii. 



XII. „ Morimga chphantina, jun. 



XIII. ,, Cystophora cristata, jun. 



XIV. ,, Otaria jubata, adult male. 



XV. „ Otaria juhata, var.? Patagonia. 



XVI. ,, Otaria oninor. 



XVII. „ Otaria idiots. 



XVIII. ,, Gypsophoca tropicalis. 



XIX. ,, Calhrhinus ursinus. 



XX. ,, Pkocarctos Hookeri, male j\xn. 



XXI. ,, Phocarctos elongatus. 



XXII. „ Phocarctos elongatus, jun. 



XXIII. ,, Arctocephalus antarcticus. 



XXIV. ,, Euotaria compressa. 

 XXV. „ Euotaria schisthyperoes. 



XXVI. ,, Euotaria cinerea. 



XXVII. ,, Euotaria latirostris. 



XXVITI. ,, Euotaria nigrescens. 



XXIX. „ Euotaria nigrescens, jun., with some of tlie milk-leetli 

 remaining. 



XXX. ,, Neophoca lobatu. 



