Thread herrings [Opisthonema]

Description

Opisthonema is a genus of fish in the Clupeidae family, known as thread herrings due to the elongated filament that extends from the dorsal fin in some species. These marine fish are found in warm waters of the Atlantic and Pacific Oceans. They have a slender body, a deeply forked tail, and a series of small, sharp scutes along their ventral side. Thread herrings are important both as prey for larger fish and as a commercial species for human consumption.

Species

Taxonomy