U.S. NATIONAL MUSEUM 
PROCEEDINGS, VOL. 62, ART. 16 PL. 2 
Bo.pl. 
Fo. lac. post. 
Pa.p. 
Prep. 
Can.Op. 
Fo. lac.med, 
Sq. 
Pr.faie. 
Meat.aud.ext. 
VENTRAL VIEW OF SKULL OF SQUALODON CALVERTENSIS. 
FOR EXPLANATION OF PLATE SEE PAGE 68, 
