Lake Ontario kiyi

Taxobox
name = Lake Ontario kiyi


image_width =
status = EX
regnum = Animalia
phylum = Chordata
classis = Actinopterygii
ordo = Salmoniformes
familia = Salmonidae
subfamilia = Coregoninae
genus = "Coregonus"
species = "C. kiyi"
subspecies = "C. k. orientalis"
trinomial = "Coregonus kiyi orientalis"

The Lake Ontario Kiyi ("Coregonus kiyi orientalis") is a fish which was last recorded from Lake Ontario, Canada in 1964. This subspecies was driven to extinction by commercial exploitation, predation and competition by introduced species.Fact|date=April 2007

It was similar to other fish species such as the bloater and short jaw cisco occurring at depths of 35-200 m. The Lake Ontario Kiyi tended to have a larger head with large eyes, long ventral fins and long gill rakers, usually numbering fewer than 44. Its color was similar to other ciscoes which have silvery sides with pink or purple iridescence, dark backs and white undersides.

These fishes have now been found in the Atlantic Ocean near Newfoundland. It was caught by a fishing company and later on, they found more.