Longfin smelt

Longfin smelt
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Osmeriformes
Family: Osmeridae
Genus: Spirinchus
Species:
S. thaleichthys
Binomial name
Spirinchus thaleichthys
(Ayres, 1860)

The longfin smelt (Spirinchus thaleichthys) is a small anadromous fish native to the North Pacific, and adjacent streams and lakes. Its name is derived from its long pectoral fins, which extend almost to the base of its pelvic fins.