The Bigeye poacher (Bathyagonus pentacanthus, also known commonly as the Bigeye starsnout or the Bigeye starsnout poacher) is a fish in the family Agonidae (poachers). It was described by Charles Henry Gilbert in 1890. It is a marine, subtropical fish which is known from the Gulf of Alaska to southern California, USA, in the northern Pacific Ocean. It dwells at a depth range of 110-910 metres, and inhabits soft bottoms. Males can reach a maximum total length of 23 centimetres. The Bigeye poacher is preyed on by the Pacific cod (Gadus macrocephalus).
