Also known as Drummer, Rudderfish.
Found singly or in schools close to shorelines over shallow coral and rocky reefs.
They feed on algae.
Length - 40cm
Depth - 0-20m
Eastern Central Pacific - Revillagigedo Islands
Chubs are usually found in turbulent high energy zones where food is more abundant. Ref: https://www.fishbase.se/summary/Kyphosus-lutescens.html