[3] It was described by Pieter Bleeker in 1862, originally under the genus Hexanematichthys.

[1] It inhabits marine, brackish and freshwaters in Australia and New Guinea, at a maximum known depth of 135 m (443 ft).

[3] The diet of the triangular shield catfish includes insects, mollusks, prawns, finfish and aquatic plants.

[4] It is preyed upon by fish such as Scleropages jardinii and the Barramundi, and snakes in the species Acrochordus arafurae.

[5] The triangular shield catfish breeds between September and January.