(Lopholiparis flerxi)
Lopholiparis flerxi, the hardhead snailfish, is a species of snailfish from the northern Pacific Ocean where a single specimen (the holotype) was collected in June 2000 from near the Aleutian Islands at a depth of 285 metres (935 ft). The length of the fish was 3.3 centimetres (1.3 in) SL. This species is the only member of its genus.