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{ 11 images found }
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  • Bubble Shell, Hydatina physis, Kimbe Bay, Papua New Guinea, Pacific Ocean
    20191029_PNG_0180.tif
  • This strikingly beautiful shell is a Textile Cone, Conus textile. Like other cones, it hunts by firing a miniature harpoon into its prey from its specialized proboscis, the tube-like structure extending above the eyes. It then injects a powerful venom, so potent it can be fatal to humans. Richelieu Rock, Thailand, Andaman Sea
    cone1CP.tif
  • This tiny Tiger Ovulid, Crenavolva tigris, lives and feeds upon its host, a Gorgonian coral. Like other cowries, if disturbed, it will withdraw its colorful mantle into the protective confines of its shell. Richelieu Rock, Andaman Sea, Thailand, Indian Ocean
    cowrie35CP.tif
  • A pair of Orange-spotted Glassy Bubble Snails, Haminoea cymbalum, crawl on a rubble bottom. Namena Marine Reserve, Fiji, Pacific Ocean
    20121019_fiji_0137.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
  • 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
  • Coconut Octopus, Amphioctopus marginatus, hiding in a clam shell. Anilao, Philippines, Pacific Ocean
    20110117_Philippines_0048.tif
  • Veined Octopus, Octopus marginatus, about to close the lid on its hiding place, an empty clam shell. Lembeh Strait, North Sulawesi, Indonesia, Pacific Ocean
    octp31.tif
  • Muddy Argonaut, a.k.a. Paper Nautilus, Argonauta hians, grasping a jellyfish. Like the small butterfish, the Argonaut uses the jelly to shield it from predators. Argonauts are not true nautiluses, but rather a group 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
    argojf1_D800.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
  • 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