Lake Ontario kiyi

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Lake Ontario kiyi
Conservation status
Extinct
Scientific classification
Kingdom: Animalia Phylum: Chordata Class: Actinopterygii Order: Salmoniformes Family: Salmonidae Subfamily: Coregoninae Genus: Coregonus Species: C. kiyi Subspecies: C. k. orientalis
Trinomial name
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.^{[citation needed]}

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.