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  • This rare photo shows a Muddy Argonaut, a.k.a. Paper Nautilus, Argonauta hians, grasping a jellyfish while feeding on a Comb Jelly. The Argonaut apparently uses the jellyfish to shield itself from predators. Argonauts are not true nautiluses, but rather a family of open-ocean octopuses.  Only the females produce the delicately beautiful shell, which is actually an egg case.  Mergui Archipelago, Myanmar, Andaman Sea, Indian Ocean
    argojf2CP.tif
  • Dark volcanic substrate further emphasizes the brillinat colors of these pink soft corals, Dendronepthya sp., red encrusting sponge, and Blue Sea Star, Linckia laevigata. Barren Island, Andaman Islands, India
    20100307_Andamans_0102.tif
  • Thriving colonies of soft coral, Dendronepthya sp., and encrusting sponge adorn a sloping reef, surrounded by dark volcanic sand. Barren Island, Andaman Islands, India, Andaman Sea
    2009feb10rsand22LM.tif
  • Rarely seen by divers, this female Muddy Argonaut, a.k.a. Paper Nautilus, Argonuta hians, appears ready to abandon her egg-laden shell. This specimen had apparently been attacked and injured by a predator, which may have prompted the evacuation. While superficially resembling a nautilus, Argonauts are actually a type of pelagic octopus. Only females produce a shell, which also serves as an egg case. Males are much smaller, and seen even less often than females. Mergui Archipelago, Burma, Andaman Sea, Indian Ocean
    21JAN07OR073CP.tif
  • Warm, clear waters meet white sand beaches at Malapascua Island, Visayan Sea, Philippines, Pacific Ocean
    20120620_philippines_0133.tif
  • Occasionally found in large numbers on beaches, and in this case underwater, these  shells are actually egg cases, made by female Paper Nautilus, Argonauta hians. The tiny male Argonauts have no shell and die soon after mating, while females live in these delicate shells, which also serve as egg cases until  their brood hatches, after which the females die and the shells are abandoned.  Similan Islands, Thailand, Andaman Sea, Indian Ocean
    argoshel1CP.tif
  • Rajan the Asian Elephant, Elephas maximus, retired from the logging industry, cavorts in shallow water at Radhanagar Beach, a.k.a. Beach Number 7, Havelock Island, Andaman Islands, Andaman Sea, India, Indian Ocean
    Rajan 20 x 30
  • A diver swims above vast undersea garden of encrusting sponge and soft corals, Dendronepthya sp. Barren Island, Andaman Islands, India, Andaman Sea; Indian Ocean
    2009feb10rsand290LM.tif
  • The Hairy Squat Lobster, Lauriea siangiani, lives among the ridges of giant barrel sponges. Banda Sea, Indonesia, Pacific Ocean
    20101016_Indo_0188.tif
  • A school of Bigeye Trevally, Caranx sexfasciatus, swarm above lush growths of Soft Coral, Dendronepthya sp., surrounded by the dark volcanic substrate that is typical of many sites at Barren Island. Andaman Islands, India, Andaman Sea, Indian Ocean
    Black Magic Reefscape 20x30
  • Oceanic Whitetip Shark, Carcharhinus longimanus, and diver. Bahamas, Atlantic Ocean
    01july08owts179.tif
  • A diver hovers above thriving colonies of encrusting sponge and soft corals, Dendronepthya sp., at a site called Purple Haze. Barren Island, Andaman Islands, India, Andaman Sea, Indian Ocean
    2009feb10rsand298LM.tif
  • Oceanic Whitetip Shark, Carcharhinus longimanus, swims past photographer in open ocean.  Bahamas, Atlantic Ocean
    02july08owts041.tif
  • Oceanic Whitetip Shark, Carcharhinus longimanus, Bahamas, Atlantic Ocean
    2008july01owts163.tif
  • Oceanic White-tip Shark, Carcharhinus longimanus, among the few truly pelagic sharks. Bahamas, Atlantic Ocean
    02july08owts132-2.tif
  • A school of Lunar-Tail Bigeyes, Priacanthus hamrur, hover over a garden of staghorn coral.  Similan Islands Marine National Park, Andaman Sea, Thailand, Indian Ocean. filename: beyesch2
    bff68.tif
  • In a perfect example of symbiosis, the shy Aurora Shrimpgoby, Amblyeleotris aurora, warns its partner, a Randall’s Shrimp, Alpheus randalli, of danger by wiggling its fins. With this signal, both animals dash into the safety of their shared burrow, which is constructed & maintained by the shrimp. Barren Island, Andaman Islands, India, Andaman Sea, Indian Ocean
    20100225_Andamans_0061.tif
  • Say Ahh! A rare, brilliant yellow Weedy Scorpionfish, Rhinopias frondosa, flexes its jaws, as if bored. The actual reason for this behavior is probably to send a threatening message to the photographer, who has no doubt worn out his welcome. Scorpionfish also stretch their jaws regularly to stay limber for feeding opportunities. Manado, North Sulawesi, Indonesia, Pacific Ocean
    scorp204.tif
  • A colorful juvenile nudibranch, Chromodoris hamiltoni, browses on rocky substrate. Andaman Islands, India, Andaman Sea
    20120304_Andamans_0104.tif
  • Inherently shy, this Aurora Shrimpgoby, Amblyeleotris aurora, warns its partner, a Randall?s Shrimp, Alpheus randalli, of danger by wiggling its fins. With this signal, both animals dash into the safety of their shared burrow, which is constructed & maintained by the shrimp. Barren Island, Andaman Islands, India, Andaman Sea, Indian Ocean
    20100308_Andamans_0050.tif
  • The Oceanic Whitetip Shark, Carcharhinus longimanus, is easily identified by its distinctive paddle-shaped dorsal and pectoral fins. Once common throughout the world's deep tropical and subtropical seas, their population has been decimated by commercial fishing in recent years, particularly longlining.  Bahamas, Atlantic Ocean
    2008july01owts74.tif
  • Rarely encountered by divers, the Weedy Scorpionfish, Rhinopias frondosa, is a highly sought subject for underwater photographers. Lembeh Strait; North Sulawesi; Indonesia
    15MAY07scorp12LM.tif
  • Rarely seen by divers, this adult female Ribbon Eel, Rhinomuraena quaesita, is distinguished by its yellow coloration. Juveniles are mostly black, changing into  predominantly blue males, eventually turning into yellow females at about 85 cm length. This image is doubly rare because the animal is in the open; normally only head and shoulders protrude from burrow. Lembeh Strait, North Sulawesi, Indonesia, Pacific Ocean
    15MAY07bre17LM.tif
  • A huge school of Bigeye Trevally, Caranx sexfasciatus, create a living tornado around a lucky diver on the edge of a coral-encrusted drop-off. Pulau Koon, Banda Sea, Indonesia, Pacific Ocean
    2009APR21rsbs48LM.tif
  • Snorkeler Zan VanBrunschot explores the sunlit shallows off Radhanagar Beach, a.k.a. Beach #7, Havelock Island, Andaman Islands, Andaman Sea, India
    Havelock Split screenres.jpg
  • A Silky Shark, Carcharhinus falciformis, patrols just below the surface in deep water. Bahamas, Atlantic Ocean
    Silky 12x18
  • A tightly packed school of Ribbon Sweetlips, Plectorhinchus polytaenia, hovers in formation near a coral bommie. Raja Ampat, Indonesia, Pacific Ocean
    2009APR27rsra30.tif
  • A tiny Blenny peers from its home, an empty wormhole, surrounded by encrusting sponge.  Similan Islands Marine National Park, Thailand, Andaman Sea, Indian Ocean
    blen3.tif
  • Sixbar Wrasse, Thalassoma hardwicke. Beqa Lagoon, Viti Levu, Fiji, Pacific Ocean
    20121107_fiji_0044.tif
  • A Bluefin Trevally, Caranx melampygus, patrols past a pair of Splendid Soldierfish, Myripristis botche, amdist rocky terrain covered by small soft corals. Fish Rock, Andaman Islands, India, Andaman Sea
    20120304_Andamans_0054.tif
  • A school of Sri Lankan Sweetlips, Plectorhinchus sp., hovers in formation, accompanied by an Emperor Angelfish, Pomacanthus imperator. Campbell's Shoal, Andaman Islands, India, Andaman Sea
    20120225_Andamans_0005.tif
  • A dense gathering of schooling bannerfish, Heniochus diphreutes, surround a small bommie at Johnny's Gorge, Andaman Islands, India, Andaman Sea
    20120224_Andamans-86-2.tif
  • This elegant nudibranch, Caloria indica, is relatively common in the Andaman Sea. Similan Islands Marine National Park, Thailand, Andaman Sea; Indian Ocean
    nb234LM.tif
  • A tiny Tiger Ovulid, Cuspivolva tigris, makes its way through a forest of gorgonian coral polyps, which are open and feeding in the current. The Ovulid, which belongs to a group of sea snails known as Allied Cowries, lives and feeds upon gorgonians of the genus Euplexaura. The striking coloration is only a thin, fleshy mantle; the actual shell is rather drab. Richelieu Rock, Thailand, Andaman Sea
    cowrie17LM.tif
  • A dense school of Bluestripe Snapper, Lutjanus kasmira, hover over pastel soft corals and barrel sponges at Fish Rock, Andaman Islands, India, Andaman Sea
    Fish Rock Reefscape 12x18
  • A tightly packed school of Ribbon Sweetlips, Plectorhinchus polytaenia, with several other sweetlips species, hovers in formation near a coral bommie. Raja Ampat, Indonesia, Pacific Ocean
    2009APR28rsra65.tif
  • A tightly packed school of Ribbon Sweetlips, Plectorhinchus polytaenia, with several other sweetlips species, hovers in formation near a coral bommie. Raja Ampat, Indonesia, Pacific Ocean
    2009APR28rsra54.tif
  • A juvenile Midnight Snapper, Macolor macularis, hovers in mid-water. Ambon Harbor, Banda Sea, Indonesia; Pacific Ocean
    2009APR24snap69PHOTOSHELTER.tif
  • Rocky Islet known as Similan #6, with park headquarters Ko Miang in background, as seen from liveaboard dive boat Ocean Rover. Similan Islands Marine National Park, Thailand, Andaman Sea
    tss101.tif
  • A large male Oceanic Whitetip Shark, Carcharhinus longimanus. This species is one of the few truly pelagic sharks, rarely coming within sight of land. Once common throughout the world's deep tropical and subtropical seas, their population has been decimated by commercial fishing in recent years, particularly longlining.  Bahamas, Atlantic Ocean. Filename: 2008july01owts121
    Oceanic Whitetip
  • Oceanic Whitetip Shark, Carcharhinus longimanus. Once common throughout the world's deep tropical and subtropical seas, their population has been decimated by commercial fishing in recent years, particularly longlining. Bahamas, Atlantic Ocean
    01july08owt008.tif
  • Like some kind of animated pancake, a Black-blotched or Marble Stingray, Taeniura meyeni, glides over a rocky reef, displaying the venomous barb visibile on its ribbon-shaped tail.  Wounds from such barbs are extremely painful and occasionally life-threatening, but are easily avoided. Stingrays are actually among the most gentle and docile of animals, resorting to their barbs only as a last line of defense. Similan Islands Marine National Park, Thailand, Andaman Sea; Indian Ocean
    Marbleray Descending.jpg
  • A Pharaoh Cuttlefish, Sepia pharaonis, hovers over a rocky reef.  Richelieu Rock, Thailand, Andaman Sea
    cuttle27.tif
  • A tightly packed school of Ribbon Sweetlips, Plectorhinchus polytaenia, hovers in formation near a coral bommie. Raja Ampat, Indonesia, Pacific Ocean
    Ribbon Sweetlips 12x18
  • Thriving invertebrate and fish life on a deep slope at Apo Island Marine Sanctuary, Visayan Sea, Philippines, Pacific Ocean
    20120626_philippines_0011.tif
  • This Striated Frogfish, Antennarius striatus, has developed a remarkable adaptation in the form of hairy skin appendages, allowing it to blend in with filamentous algae where it lives. Lembeh Straits, N. Sulawesi, Indonesia, Pacific Ocean
    frog347.tif
  • A Silky Shark, Carcharhinus falciformis, patrols just below the surface in deep water. Bahamas, Atlantic Ocean
    Silky Shark.tif
  • A Tailspot Blenny, Ecsenius stigmatura, hovers over a colorful colony of encrusting sponge. Raja Ampat, West Papua, Indonesia, Pacific Ocean
    2009MAY01blen06LM.tif
  • A tightly packed school of Ribbon Sweetlips, Plectorhinchus polytaenia, hovers in formation near a coral bommie. Raja Ampat, Indonesia, Pacific Ocean
    2009APR27rsra30.tif
  • This Oceanic White-tip Shark, Carcharhinus longimanus, is accompanied by a pair of Pilotfish, Naucrates ductor. Both species are pelagic, open-ocean nomads, rarely coming near land or shallow water. Bahamas; Atlantic Ocean
    02july08owts074.tif
  • A Great White Shark, Carcharcarodon carcharius, cruises in clear, blue water at Guadalupe Island, Mexico, in the Pacific Ocean.
    2009oct25gws08LM.tif
  • The Oceanic Whitetip Shark, Carcharhinus longimanus, is one of the few truly pelagic sharks, rarely coming within sight of land. Once common throughout the world's deep tropical and subtropical seas, their population has been decimated by commercial fishing in recent years, particularly longlining.  Bahamas, Atlantic Ocean
    2008july01owts54.tif
  • This colorful nudibranch, Halgerda stricklandi, was scientifically described in 1999. Mergui Archipelago, Burma, Andaman Sea
    nb317.tif
  • A pair of Caribbean Reef Sharks, Carcharhinus perezi, cruise above colorful sponges at the edge of the Gulf Stream. Little Bahama Bank Bahamas, Atlantic Ocean
    11july08bah009.tif
  • A densely packed school of Bigeye Trevally, Caranx sexfasciatus,  maintain tight formation in mid-water.  Pulau Koon, Banda Sea, Indonesia, Pacific Ocean
    2009APR21rsbs25LM.tif
  • A Tiger-tail Seahorse, Hippocampus comes, hunts for tiny crustaceans while perched on a brilliant red gorgonian coral.  Mergui Archipelago, Myanmar, Andaman Sea, Indian Ocean
    sh85.tif
  • Oceanic White-tip Shark, Carcharhinus longimanus, among the few truly pelagic sharks. Bahamas, Atlantic Ocean
    30june08owts13.tif
  • The Oceanic Whitetip Shark, Carcharhinus longimanus, is easily identified by its distinctive paddle-shaped dorsal and pectoral fins. Once common throughout the world's deep tropical and subtropical seas, their population has been decimated by commercial fishing in recent years, particularly longlining. Bahamas, Atlantic Ocean
    2008july01owts174.tif
  • A female Pharaoh Cuttlefish, Sepia pharaonis, hovers near a soft coral (far left) while positioning herself to deposit one fertilized egg at a into a crevice to deposit eggs while 3 males compete for the chance to mate with her. During such courtship rivalries, males display spectacular, rapidly changing color patterns, probably meant to intimidate their rivals. Richelieu Rock, Thailand, Andaman Sea, Indian Ocean
    Cuttlefish Romance 16x20
  • A Caribbean Reef Shark, Carcharhinus perezi, cruises above colorful sponges at the edge of the Gulf Stream. Little Bahama Bank Bahamas, Atlantic Ocean
    Caribbean Reef 20x30
  • A school of Bigeye Trevally, Caranx sexfasciatus, swarm above lush growths of Soft Coral, Dendronepthya sp., surrounded by the dark volcanic substrate that is typical of many sites at Barren Island. Andaman Islands, India, Andaman Sea, Indian Ocean
    2009feb18rsand67.tif
  • This brilliantly colored male Twospot Anthias, Pseudanthias bimaculatus, was found on a deep wall dive at Barren Island. Andaman Islands, India, Andaman Sea; Indian Ocean
    20100226_Andamans_0039.tif
  • A Raja Epaulette Shark, Hemiscylliium freycineti, forages amidst a healthy seagrass bed. Epaulette Sharks are also known as Walking Sharks, due to their habit of walking on their fins instead of swimming. Raja Ampat, West Papua, Indonesia, Pacific Ocean
    2009MAY07epshark48LM.tif
  • Harlequin Tuskfish, Choerodon fasciatus, Agincourt Reef, Great Barrier Reef, Australia, Coral Sea, Pacific Ocean
    20121113_CoralSea_0016.tif
  • Humpback Whales, Megaptera novaeangliae. In this case a mother and calf surface to breathe as an adult male, serving as escort, descends.  When the calf is several months old it will follow its mother away from the warm, sheltered waters of the tropics and swim thousands of miles to summer feeding grounds in the Southern Ocean. Tonga; Pacific Ocean
    30SEP08humpbk350.tif
  • A school of Chevron Barracuda, Sphyraena genie, hovers in mid-water over a site called Black Magic, Barren Island, Andmaman Islands, India, Andaman Sea
    20120308_Andamans_0032.tif
  • Elements of 2 worlds, a traditional Thai fishing boat and modern cruise ship share an anchorage. Similan Islands Marine National Park, Thailand, Andaman Sea
    tss26.tif
  • A curious Clown Triggerfish, Balistoides conspicillum, peers into the photographer's lens. Similan Islands Marine National Park, Thailand, Andaman Sea
    ct7.tif
  • A Great White Shark, Carcharcarodon carcharius, makes a close approach. Guadalupe Island; Mexico; Pacific Ocean
    Encounter
  • A school of Chevron Barracuda, Sphyraena genie, hovers in mid-water over a site called Black Magic, Barren Island, Andmaman Islands, India, Andaman Sea
    20120308_Andamans_0032BW.tif
  • A Great White Shark, Carcharcarodon carcharius, is illuminated by dancing sunbeams in clear, open water. Guadalupe Island; Mexico; Pacific Ocean
    2009oct26gws262_BW.tif