Habitat: reef-associated; marine Distribution: Cristobal, Solarte, Carenero and Bastimentos Islands, Crawl Key, Hospital Point NE of Solarte Island, Wild Cane Key N of Bastimentos Island. Natural History Notes: Piscivore. Can be solitary or collect to form small or large groups. Swim in open reefs and often forage alongside goatfish and shadow stingrays for fish, shrimp and invertebrates. Depth: 3 - 35m Characteristics: Distinctive blue-black border along the dorsal fin and lower tail fin. Surface is silver although can darken especially during benthic feeding. Length 8 - 14in, max. 2 ft.