Members of the genus Amphioctopus reside in tropical and subtropical waters.

In 2002, Gleadall suggested that the aegina species group represents a distinct genus with Amphioctopus being the senior name.

In 2004, Gleadall resurrected the genus Schizoctopus and assigned Octopus fangsiao as the type species.

[4] In 2005, Huffard and Hochberg, arguing that Robson's designation of Octopus membranaceus as a nomen dubium was premature and considering it a valid name, resurrected the genus name Amphioctopus for the Octopus aegina species complex.

Huffard and Hochberg also found Schizoctopus to be a junior synonym for Amphioctopus.