SUPPLEMENT. 409 



high anteriorly, thirteen posteriorly. Pectorals, falciform ; one 

 foot nine inches long ; five and a half feet high ; distance be- 

 tween the pectoral and ventral, eight feet. Length of the ven- 

 trals, one foot eleven inches ; height, two feet nine inches; length 

 of the claspers, three feet three inches ; width at their base, 

 eight inches, from which they gradually pass to a point ; they 

 enclose a strong, bony spine. The commencement of the anal 

 is directly opposite the middle of the second dorsal ; its length 

 is eleven inches ; its height, fourteen inches ; across the top, 

 ten inches ; distance between the anus and anal fin, three and 

 a half feet. Anterior to the caudal fin is a lunated depression 

 above and beneath the posterior extremity of the fish ; at the 

 base of the tail, a carina upon each side, one foot eight inches 

 long. The caudal lobes, unequal ; the upper lobe, six feet six 

 inches in length, measured over its curve, having at its ex- 

 tremity a small triangular lobe ; the lower lobe, four feet two 

 inches, measured in the same way ; width of the extremity of 

 the lower lobe, six inches ; width at the base, two feet two 

 inches ; width of the extremity of the upper fluke, or lobe, one 

 inch ; width of the base, two feet three and a half inches ; from 

 the lunated depression to the middle of the fin, two feet eleven 

 inches. 



Attached to the branchiae, I found a single specimen of the 

 " Cineras vittata." 



Under the name of " squalus elephas" this shark was admi- 

 rably described by Le Sueur, in the " Journal of the Academy 

 of Natural Sciences" from a specimen taken on the coast of 

 New Jersey in 1822 ; and his figure, when it is remembered 

 that it was taken from a stuffed skin, is very accurate. 



Among our fishermen it is known as the bone shark. 



D. H. S. 



52 



