1. (most common grey shark along coasts of middle Atlantic states
sluggish and occasionally caught by fishermen)
żarłacz brunatny, żarłacz brunatny atlantycki
synonim: Carcharhinus plumbeus

2. (widely distributed shallow-water shark with fins seemingly dipped in ink)
żarłacz czarnopłetwy: : synonim: blacktip shark
synonim: Carcharhinus limbatus