Oceanarium, Pacific Beach Hotel

Kaneohe Bay, Oahu

Corsair, Oahu, 105 feet

Lahilahi Cavern, Oahu, 95 feet

Corsair, Oahu, 105 feet

Endemic to Hawaii.  Occasional on sand at any depth, most common in deep water.  Tail covered with sharp tubercles.  Attains width of at least 4 feet.  Often misidentified as the Hawaiian Stingray, D. hawaiiensis, it has a smooth tail.