Doug Perrine / Haleakala silversword / Ahinahina (Argyroxiphium sandwicense macrocephalum) in bloom at night with stars visible in the sky above, Haleakala National Park, Maui, Hawaii. Critically endangered.

Doug Perrine / Knobby sea stars (Pentaceraster cumingi) aggregating on seabed, probably gathering for mating, Makako Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Knobby sea stars (Pentaceraster cumingi) aggregating on seabed, probably gathering for mating, Makako Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Mauna Kea silversword / Ahinahina (Argyroxiphium sandwicense sandwicense) in flower on slopes of MaunaKea volcano at sunset, Big Island, Hawaii. Critically endangered.

Doug Perrine / Knobby sea stars (Pentaceraster cumingi) aggregating on seabed, probably gathering for mating, Makako Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Mauna Kea silversword / Ahinahina (Argyroxiphium sandwicense sandwicense) in flower on slopes of MaunaKea volcano at sunset, Big Island, Hawaii. Critically endangered.

Doug Perrine / Mauna Kea silversword / Ahinahina (Argyroxiphium sandwicense sandwicense) in flower, close up of blossom, MaunaKea volcano, Big Island, Hawaii. Critically endangered.

Doug Perrine / Mauna Kea silversword / Ahinahina (Argyroxiphium sandwicense sandwicense) in flower on the slopes of MaunaKea volcano, The Big Island, Hawaii. Critically endangered.

Doug Perrine / Hawaiian long-armed sand octopus (Thaumoctopus, Abdopus, or Macrotritopus sp.) unidentified species possibly endemic to Hawaii, swimming by jet propulsion, jetting water through its funnel, Honokohau,...

Doug Perrine / Group of Freckled driftfish (Psenes cyanophrys) swimming alongside tentacles of Pelagic jellyfish (Thysanostoma sp.), Pawai Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Hawaiian long-armed sand octopus (Thaumoctopus, Abdopus, or Macrotritopus sp.) unidentified species possibly endemic to Hawaii, pair displaying mating behaviour, dark maroon colour pattern around eyes...

Doug Perrine / Hawaiian long-armed sand octopus (Thaumoctopus, Abdopus, or Macrotritopus sp.) unidentified species possibly endemic to Hawaii, perched above its burrow with eyes raised for viewing its surroundings,...

Doug Perrine / Pelagic jellyfish (Thysanostoma sp.) swimming in open water accompanied by group of Freckled driftfish (Psenes cyanophrys), Pawai Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Hawaiian long-armed sand octopus (Thaumoctopus, Abdopus, or Macrotritopus sp.) unidentified species possibly endemic to Hawaii, perched on tips of arms, Honokohau, North Kona, Big Island, Hawaii, Paci...

Doug Perrine / Pelagic jellyfish (Thysanostoma sp.) swimming in open water accompanied by group of Freckled driftfish (Psenes cyanophrys), Pawai Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Bigeye emperor (Monotaxis grandoculis) portrait, Honokohau, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Schooling Bigeye emperors (Monotaxis grandoculis), Honokohau, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Pelagic jellyfish (Thysanostoma sp.) swimming in open water accompanied by group of Freckled driftfish (Psenes cyanophrys), Pawai Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Bigeye emperor (Monotaxis grandoculis) sub-adult, portrait, Honokohau, Kona, Hawaii, Pacific Ocean.

Doug Perrine / Pacific agile chromis (Pycnochromis pacifica) juvenile, portrait, Honokohau, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Hawaiian longfin anthias (Pseudanthias hawaiiensis) male, portrait, Pawai Bay, North Kona, Hawaii, Pacific Ocean.

Doug Perrine / Flame angelfish (Centropyge loriculus) swimming on coral reef, with Finger coral (Porites compressa) behind, Ho'okena, South Kona, Hawaii, Pacific Ocean.

Doug Perrine / Banded angelfish (Apolemichthys arcuatus) swimming over coral reef, Kaiwi Point, North Kona, Hawaii, Pacific Ocean.