U. S. NATIONAL MUSEUM 



BULLETIN 138 PL. 25 



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z:^. 



1 



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ii 



!l-4. Callianassa incerta. (Page 108. > 5 7. C. kewana. Page 109.^ 



8 12. C. UMPQUAENSIS. (PAGE IIOi 



For explanation of plate see page 145 



