82 BULLETIN 36, UNITED 8TATE.S NATIONAL MU8EUM. 



Iiicbi'.s. 



Width across the mouth at the angles 'J. 



Girth of body at insertion of tlukes 7. 



Girth of body at anus If). 5 



Girth of body at genital slit 2\.0 



Girth of body at a distance of 4 feet from lliikes 15:5. 



Girth of body behind the pectoral tins 'M. 



Girth of body ia front of the pectoral tius ;54. 



Scaiiinion states tbat be has seeu this species as for south as San 

 Diego Bay, Califoruia, and as far north as Bering Sea. 



The differences in color and proportions between this species and L. 

 peronil are so great that we may expect to find differences in the skel- 

 etons when the latter become known. The skidls, however, as already 

 stated, show few differences. I have .ilready referred to the shortness 

 of the right intermaxillary bone, and it may be that this is a character 

 peculiar to L. horeaUs. In Cuvier's figure of L. peronii the proximal 

 end of tbe right intermaxilla is in the normal position. 



TURSIO BOUEALIS AND PERONII. 



Table of measurements. 



