U.S. NATIONAL MUSEUM 



BULLETIN 2'J4. PLATE 19 



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.^•H^r 









Lateral \'icws of Dorsal Vertebrae, USNM 23636, Halicetus ignotus 



1, sixth dorsal; 2, seventh dorsal; 3, eighth dorsal; 4, ninth dorsal; 5, tenth dorsal; 6, eleventh dorsal; 7, twelfth dorsal, 



S, first lumbar. 



