816 



PROCEEDINGS OF THE XATTONAL MJ'SEVM. 



Vdl.. \XVIII. 



The following' measurements were made by the writer and liis son 

 (ieoro-(^ before the shark was skinned: 



Total Icnu-th, 11 feet; depth at orioin 

 of pectoral, 12 inches; depth at first 

 dorsal, 11 inches; tip of snout to eye, 

 1 Ti inches; ti}) of snout to anterior 

 edge of first gill-opening, "11^ inches; 

 tip of snout to base of first dorsal, 1(H 

 inches; length of upper margin of tail, 

 3!) indies; lower margin to notch, 28 

 inches; length of rostral appendage 

 underneath, 12 inches; width of rostral 

 appendage, G inches; width at spiracles, 

 Ti inches; width between the eyes, 8^ 

 inches; diameter of eye, 1^ inches; spir- 

 acle, It inches wide, 8^ inches from 

 front of eye and on lino with it. Upper 

 jaw grooyed and prolonged beyond the 

 lower jaw, which is deeper grooyed at 

 the synthesis than the upper. There 

 are four rows of yisi))le teeth, the in- 

 ner row partly embedded in the flesh. 

 Teeth long and slender, sharp-pointed, 

 curyed and recuryed, and haying a 

 double l>ase; more numerous and longer 

 at the extremity of the jaws than pos- 

 teriorly. Longest teeth in upper jaw, 

 seyen-eighths of an inch; longest in 

 lower jaw, 1 inch. Fi^'e gill-openings. 



The fin measurements in inches are as 

 follows: Base of first dorsal, 7^; height 

 of first dorsal, 10; width of end of first 

 dorsal, 3i. The second dorsal is innne- 

 diately oyer the space between yentrals 

 and anal, its base, 5; height, 8; width of 

 (Mid, 4. Pectoral, length of outer mar- 

 gin, 13; inner margin, it; and width of 

 tip, 7. Ventral, length of base, 12; 

 length of anterior margin, 9; width of 

 tip, 9i. Anal, base, 12. 



The basal bones of the fins count as 



follows: Pectoral, 16; yentral, 23; anal, 



23; second dorsal, 12. 



The specimen is now [)reseryed in the \J . S. National ^Museum as a 



dried skin and a partial skeleton preseryed in alcohol. It is Cat. No. 



00972, U.S.N.M., and bears the following label: 



