Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) resting on a yellow sponge, in front of red soft coral (Eunephthya rubiformis). Browning Pass, Port Hardy, Vancouver Island, British Columbia. Canada. Nor...

Franco Banfi / Portrait of red irish lord (Hemilepidotus hemilepidotus), Alaska, United States, North Pacific Ocean.

Pascal Kobeh / Close-up of a Red Irish lord (Hemilepidotus hemilepidotus), Alaska, USA, Gulf of Alaska. Pacific ocean.

Pascal Kobeh / Close-up of the head of a Brown Irish lord (Hemilepidotus spinosus), Alaska, USA, Gulf of Alaska. Pacific ocean.

Pascal Kobeh / Close-up of the head of a Red Irish lord (Hemilepidotus hemilepidotus), Alaska, USA, Gulf of Alaska. Pacific ocean.

Pascal Kobeh / Red Irish lord (Hemilepidotus hemilepidotus), Alaska, USA, Gulf of Alaska. Pacific ocean.

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) sets an ambush, resting on a yellow sponge, in front of red soft coral (Eunephthya rubiformis). Browning Pass, Port Hardy, Vancouver Island, British Columb...

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) amongst red soft corals. Browning Wall, Port Hardy, Vancouver Island, Canada. North East Pacific Ocean.

Alex Mustard / High magnification eye detail of Red Irish lord (Hemilepidotus hemilepidotus). Browning Pass, Port Hardy, Vancouver Island, Canada.

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) hides on the seabed, with Quillback rockfish (Sebastes maliger) and copper rockfish (Sebastes caurinus) behind in the bull kelp forest. Browning Pass, Vanc...

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) rests on a kelp frond. Browning Pass, Port Hardy, Vancouver Island, British Columbia, Canada. North East Pacific Ocean.

Alex Mustard / Eye detail of Red Irish lord (Hemilepidotus hemilepidotus). Browning Pass, Port Hardy, Vancouver Island, Canada.

Alex Mustard / Irish lord (Hemilepidotus hemilepidotus) lays an ambush amongst colourful marine life. Browning Pass, Port Hardy, Vancouver Island, British Columbia, Canada. North East Pacific Ocean.

Jeff Rotman / Red Irish Lord (Hemilepidotus hemilepidotus) close up of face, Queen Charlotte Strait, British Columbia, Canada, North Pacific Ocean.

Jeff Rotman / Red Irish Lord (Hemilepidotus hemilepidotus) camouflaged on sea floor, Queen Charlotte Strait, British Columbia, Canada, North Pacific Ocean.

Norbert Wu / Red Irish Lord (Hemilepidotus hemilepidotus), Vancouver Island, British Columbia, Canada

Norbert Wu / Red Irish Lord (Hemilepidotus hemilepidotus) hiding in a crevice, Vancouver Island, Canada

Norbert Wu / Red Irish Lord (Hemilepidotus hemilepidotus) sculpin, southeast Alaska

Norbert Wu / Red Irish Lord (Hemilepidotus hemilepidotus) portrait, Vancouver Island, British Columbia, Canada

Norbert Wu / Red Irish Lord (Hemilepidotus hemilepidotus), camoufalged against rocks, Alaska

Juergen Freund / Red Irish Lord {Hemilepidotus hemilepidotus} hidden in coral reef, Canada

Fred Bavendam / Red Irish Lord (Hemilepidotus hemilepidotus) portrait, underwater, Hurst Island, British Columbia, Canada

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) head portrait, Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait, Pacific Ocean.

Alex Mustard / Brown Irish lord (Hemilepidotus spinosus) resting on the sea bed, Vancouver Island, British Columbia, Canada, Pacific Ocean.

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) resting among Red soft coral (Eunephthya rubiformis), Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait, Pacific Ocean.

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) portrait, Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait, Pacific Ocean.

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) portrait, Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait, Pacific Ocean.

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) camouflaged on reef with White short plumose anemones (Metridium senile), Browning Pass, Vancouver Island, British Columbia, Canada, Queen Charlotte Strait...

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) camouflaged amongst Red soft coral (Eunephthya rubiformis) and Yellow encrusting sponges (Myxilla lacunosa) with White plumose anemones (Metridium senile)...

Alex Mustard / Red Irish lord (Hemilepidotus hemilepidotus) resting amongst Red soft coral (Eunephthya rubiformis) and Yellow encrusting sponges (Myxilla lacunosa), Browning Pass, Vancouver Island, British Columbia,...

Shane Gross / Eyes of Red Irish lord (Hemilepidotus hemilepidotus) in Browning Pass, Vancouver Island, British Columbia, Canada. North East Pacific Ocean. July.

Shane Gross / Red Irish lord (Hemilepidotus hemilepidotus) close up detail of the pectoral fin, Browning Pass, Queen Charlotte Strait, Vancouver Island, British Columbia, Canada.

Shane Gross / Close-up detail of the eye of a Red Irish lord fish (Hemilepidotus hemilepidotus) showing distinctive corneal chromatophores (pigment-containing structures). Browning Pass, Vancouver Island, British C...

Shane Gross / Red Irish lord (Hemilepidotus hemilepidotus) rests on a kelp frond off Vancouver Island, British Columbia, Canada.

David Hall / Red Irish lord sculpin (Hemilepidotus hemilepidotus) camouflaged amongst Plumose anemones (Metridium senile), red soft coral (Gersemia rubiformis), various sponges, bryozoans and calcareous tubeworms....

David Hall / Red Irish lord fish (Hemilepidotus hemilepidotus) among Sulfur Sponge (Myxilla lacunosa) Browning Pass, Queen Charlotte Strait, British Columbia, Canada. May.

David Hall / Red Irish lord fish (Hemilepidotus hemilepidotus) with Pygmy rock crab (Cancer oregonensis). Seven-Tree Island, Browning Pass, British Columbia. September.

David Hall / Red Irish lord fish (Hemilepidotus hemilepidotus) with Plumose anemones (Metridium senile) Seven-tree Island, Browning Pass, Queen Charlotte Strait, British Columbia, Canada. May.