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Juvenile sharpear enope squid about 1\
Close up of a shark egg.
Hokkaido,Japan - February 15, 2023: Clione, a kind of sea angel
Glass sponge, Sea life Salp and Orange Sea sponge from scuba diver point of view
Blue Striped Tunicate Rhopalaea circula occurs in the Western Central Pacific in a depth range from 6-18m. Tunicates do not have backbones, but they are vertebrates, why? At some point in their life cycle, they have a tail, a central nerve cord, a pharyngeal gill cleft and a notochord. Often mistaken for sponges, it's simple to test: Tunicates have two siphons and when disturbed, they can rapidly close them. Palau 7°6'55.26 N 134°16'11.96 E at 25m depth, deeper than the usually noted 18m maximum depth.
Naked Sea Butterfly or Sea Angel ( Common Clione) in Hokkaido,Japan
Box fish Diving in Lembeh
Goldfish swimming in the water with a black background photographed in Chengdu
Juvenile diamond squid flashing an orange coloration encountered at night scuba diving out in the open ocean over deep water a few miles off the coast of Palm Beach, Florida.
Ptilosarcus gurneyi, the orange sea pen or fleshy sea pen, is a species of sea pen in the family Pennatulidae. It is native to the northeastern Pacific Ocean where it lives in deep water anchored by its base in sand or mud. It has received its common name because of its resemblance to a quill in a bottle of ink. Monterey Bay, California.
Bobbit worm
Sea life  Trachurus fish Underwater  Mediterranean sea Scuba diver point of view. Jack mackerels or saurels fish. Night shoot.
Underwater close up photography of a blue club tunicate.
Close up of lion's mane nudibranch or sea slug, Melibe leonina, on kelp leaf.
An amazing picture of dumbo octopus under the water
Tasselled Wobbegong Eucrossorhinus dasypogon occurs in Eastern Indonesia, Papua New Guinea and Northern Australia. This ovoviviparous species can reach more than 3.5m length, common length is less than 2m. The tough skin is used sometimes for leather. \nTasselled Wobbegong is threatened by extensive coral reef habitat destruction (pollution and dynamite fishing), as well as expanding fisheries. A considerable section of its habitat is protected in the Great Barrier Reef Marine Park. \nThe species is primarily nocturnal. Usually, by burrowing into the sand and with sand on its fins, the sharks outline becomes almost completely invisible to prey. This specimen was encountered at 4m depth during night time just when leaving the bottom. The scare at the pectoral fin of this specimen is distinctive.\nTriton Bay, Kaimana Regency, Indonesia, 3°56'17.7941 S 134°7'10.2802 E at 4m depth
Dance of KURIONE
Deep water mushroom soft coral, Heteropolypus ritteri is a genus of soft corals in the family.  Monterey Bay, California. Alcyoniidae.
Small sharpear enope squid in a symmetrical pose. Photographed at night during a blackwater drift dive out in the open ocean off Palm Beach, Florida
Sea life Salp and Orange Gorgonian coral from scuba diver point of view
Sea pen Background
Tropical aquarium, tropical waters sea anemone macro close up tentacles underwater
underwater  photo
The Pacu's piranha-like appearance is aptly complemented by its insatiable hunger.
Ribbonfish Deep Sea Underwater Creature from Outer Space during Blackwater diving at Izu, Japan
Deep water mushroom soft coral, Heteropolypus ritteri is a genus of soft corals in the family.  Monterey Bay, California. Alcyoniidae.
Drift Ice Angel Clionidae
Underwater photography beauty deep sea, red ascidiacea tunicate Halocynthia papillosa, yellow coral  orange sponge fish reef Sea life.   Scuba diver point of view
Pyrosome with two fish hiding inside
Bigfin Reef Squids are easy to distinguish from other squids in that they possess thick and muscular oval fins that extend around almost the entire mantle. Because of these fins, bigfin reef squids are sometimes mistaken for cuttlefish. The bigfin reef squid is the most widespread species in the genus Sepioteuthis. It is found in temperate and tropical regions of the Indian Ocean and the Western Pacific Ocean.\nAt night, when the Bigfin Reef Squids are most active, they are commonly found in shallow areas from 0-100m around reefs, sea grass beds, sandy bottoms, or rocky shorelines. They surface at night, as it is less likely to be detected by predators. During the day, they generally move to deeper waters or near any form of cover, such as floating driftwood, reefs, rocks, or grasses.\nSquids have speedy colour-changing abilities as their pigment cells, the chromatophores, rapidly change size and colour and the visual effect is enhanced by light reflecting cells, the iridocytes. They can shoot ink (dark melanin pigment) to confuse predators and aide in escapes. \nTriton Bay, West Papua Province, Indonesia, 3°56'17.7941 S 134°7'10.2802 E at 1m depth
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