17 



white below ; upper half of the second dorsal generally deep 

 black. 



llab. Eed Sea to the Malay Archipelago. Attains twelve feet 

 or more in length. 



16. (16.) Carcharias limbatus. 

 Carcharias (Prionodon) limbatus, Mull, fy Henle, Playios. p. 49, t. xix, 



f. 9 (teeth). 

 Carcharia-s limbatus, Day, Fish. India, p. 710, pi. clxxxiv, fig. 2 



(see synon.). 



Length of preoral portion of the snout about equal to the 

 width of the mouth, and slightly less than the distance between the 

 eye and the first gill-opening ; a short groove at the angle of the 

 mouth scarcely extending on to the upper jaw. Eyes small; gill- 

 openings about twice the size of the eye. Teeth erect, somewhat 

 constricted above the base, which is broad, the upper teeth broader 

 than the lower, although all are of somewhat similar shape, and 

 serrated, but most distinctly in the upper jaw ; in the young the 

 teeth in the mandibles usually appear to have smooth edges, but 

 under the microscope the rudiments of serrations are perceptible. 

 Fins the length of the base of the anal is equal to about two thirds 

 of its distance from the base of the ventral ; the pectoral extends 

 to below or even to beyond the hind edge of the dorsal fin ; the 

 posterior edge is slightly concave ; the internal edge is y\ to ^ the 

 width of the outer. Dorsal commences over the inner angle of the 

 base of the pectoral ; second dorsal arises above or slightly pos- 

 terior to the origin of the anal, than which it is somewhat smaller. 

 Caudal 83 to 3 in the total length. Colour grey superiorly, 

 becoming white on the sides and beneath. Pins dark grey; in the 

 immature the outer extremity of pectoral, lobe of caudal, and the 

 margins of the fins dark black ; ventral and anal white-edged. 

 As age advances, the second dorsal becomes black-tipped and the 

 anal has a darker edge. 



Hob. This shark is very common along the sea- coasts of India, and 

 appears to frequent the tropical parts of the Atlantic, and of the 

 Pacific coast of Central America, and to extend throughout the 

 Indian Ocean. It attains at least six feet in length. 



17. (17.) Carcharias temminckii. 



Carcharias (Prionodon) temminckii, Milll. $ Henle, Plagios. p. 48, 



t. xviii. 

 Carchavias temminckii, Day, Pish. India, p. 717 (see synon.). 



Length of the preoral portion of the snout about four fifths the 

 width of the mouth. Nostrils nearer to the mouth than to the end 

 of the snout. Teeth !^~^, upper rather narrow with a broad base, 

 erect and serrated; the lower erect, entire, awl-shaped ; the teeth 

 near the outer angle of the jaws very small. Fins first dorsal 

 inserted midway between the roots of the pectoral and ventral fins : 



