Latropiscis purpurissatus, the sergeant baker, is a species of flagfin endemic to Australia.

This species grows to a total length of 60.0 centimetres (23.6 in), and is the only known member of its genus.

Sergeant Baker sailed to Australia aboard the transport ship Charlotte as a Corporal of Marines.

[1] Sergeant bakers are commonly found in Australia's warm southern waters between Queensland and Western Australia, dwelling on the bottom of coastal and deep-reef environments.

They readily take bait or lures, but are generally considered poor eating.