SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 52 



EXPLANATION OF PLATE 

 Both figures greatly reduced to approximately uniform scale 



Upper Fig. Phocccna. No. 218737, U. S. Nat. Mus. Collected at St. George 



Island, Alaska, by C. D. Hanna. 

 Lower Fig. Phococnoidcs. No. 219334, U. S. Nat. Mus. Collected near 



Wrangell, Alaska, by E. P. Walker. (The skull is tilted slightly to the right. 



This exaggerates the flatness of the rostrum as compared with the rostrum 



of Plwccriia.) 



