28 Sharks 



PARAGALEUS, SMALL BLACK-TIPPED, 

 LEMON, OTHER SHARKS 



L Length of front margin of pectoral fin equal to distance 

 from tip of snout to a point just before first gill slit 

 Page 29, figs. A-C 



la. Base of first dorsal fin much longer than depth of 

 head at third gill slit 

 Page 29, fig. A 



See Paragaleus, p. 241. 



lb. Base of first dorsal fin about equal to or shorter 

 than depth of head at third gill slit 

 Page 29, figs. B, C 



1. Length of front margin of first dorsal fin over 

 three times the length of front margin of second 

 dorsal fin 



Page 29, fig. B 



See Small Black-tipped Shark, p. 245. 



2. Length of front margin of first dorsal fin only 

 slightly more than length of front margin of 

 second dorsal fin 



Page 29, fig. C 



See Lemon Shark, p. 243. 



IL Length of front margin of pectoral fin equal to dis- 

 tance from tip of snout to a point about halfway be- 

 tween hind margin of eye and first gill slit 

 Page 29, figs. D, E 



See Sharp-nosed, Smooth-Tooth, Sickle-Shape Sharks, 

 p. 30. 



