Lesson's Thicklip Plectorhinchus lessonii

Lesson's Thicklip, also called Lesson's Sweetlips, is a type of grunt native to Southeast Asia and northern Australasia. It is sometimes called the Striped Sweetlips, which is the common name of a similar-looking fish, P. diagrammus, with a similar range.

It is also a little similar to the Oriental Sweetlips, but has white pectoral fins, not yellow, straighter (less circular) lines and less bright yellow markings. It can grow to some 40cm long.