ERRATA. 
VOLUME IV. PART II. 
ILLUSTRATIONS. 
Plates Liv and tv, for Phoca geronimensts, read Phoca r. geronimensis. 
TEXT. 
Page 543, 20th line from top, for Gallapagos, read Galapagos. 
Page 619, rath line from top, for M. r. tropidorhynchus, read M. tropidorhynchus. 
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