1.  sandbar shark(n = noun.animal) blacktip shark, carcharhinus limbatus - widely distributed shallow-water shark with fins seemingly dipped in ink;
is a kind of requiem shark
is a member of carcharhinus, genus carcharhinus

2.  sandbar shark(n = noun.animal) carcharhinus plumbeus - most common grey shark along coasts of middle Atlantic states; sluggish and occasionally caught by fishermen;
is a kind of requiem shark
is a member of carcharhinus, genus carcharhinus

angel shark, basking shark, blacktip shark, blue shark, bonito shark, bonnet shark, bull shark, card shark, carpet shark, cat shark, cow shark, cub shark, dusky shark, fox shark, great blue shark, great white shark, hammerhead shark, lemon shark, loan shark, mackerel shark, mako shark, man-eating shark, nurse shark, oceanic whitetip shark, reef whitetip shark, requiem shark, sand shark, sandbar, shark, shark oil, shark repellent, six-gilled shark, smoothhound shark, soupfin shark, thresher shark, tiger shark, whale shark, white shark, white-tipped shark, whitetip shark