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Lesser bobtail squid underwater in the Saguenay Fjord in Canada
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. \nThis specimen laid egg capsules on a boie rope. \nLembeh Strait, Indonesia\n1°28'8.9165 N 125°14'39.1048 E at 16m depth
Behold the mysterious elegance of an octopus as it gracefully navigates the ocean depths, its tentacles dancing in the currents, a symbol of intelligence and adaptability.
Wonderful octopus in the sea.
Bunch of squid over sand
Squid in the water column.
Extreme close-up of an octopus sleeping with closed eyes. Blurred tentacles in the foreground.
An amazing cuttlefish among soft coral. Picture from Puerto Galera, Philippines. Sandy bottom and turquoise water in the background
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. \nThis specimen was encountered in the Lembeh Strait, Indonesia\n1°28'8.916 N 125°14'39.102 E at 16m depth
Pharaoh Cuttlefish (Sepia pharaonis) expands and contracts muscle rings around sac colors in order to show different colors. It is typically consumed as dried, shredded cuttlefish, popular snack food
Common octopus attacking camera. Mediterranean sea.
Big Blue Octopus - Octopus cyanea swims in the open sea. Underwater world of Bali.
Octopus is resting on the sand and is camouflaged to blend in with the coral. The background consists of coral and rocks.
An octopus in the sea
Sea life. Octopus, Cephalopod on  Sandy bottom. Underwater abstract. Close-up
two squid in the Pacific Ocean
Long Arm Octopus Macrotritopus sp. is pelagic in the larval phase. As adult he lives on sandy or muddy surfaces. \n\nWhen you think of a long-armed octopus, you think of a meter-long animal. It is the proportions, the small head (6cm) compared to the arms (15cm), that make this animal appear so long-armed. \nThe Long Arm Octopus found in the Indo-Pacific region, including the Lembeh Strait, may represent an undescribed species within this genus. \nUnlike some of more robust cephalopods, the Long Arm Octopus are normally quite shy. They are often found resting inside a small hole in the sand with only their head sticking out.\nThis specimen was encountered in the Lembeh Strait, Indonesia \n1°28'56.394 N 125°15'15.588 E at 9m depth
Common cuttlefish in Adriatic Sea near Hvar Island
Close-up of fish
Octopus vulgaris
A shallow coral reef with one Pharoah Cuttlefish (Sepia pharaonis) swimming alone.  These Cephalopod are able to change skin colour in an instant to blend in and camouflage with their surroundings. The animal is splaying its tentacles in defensive behavior.  Image taken whilst scuba diving in Phi Phi island archipelago, Krabi province, which is one of Thailand’s top travel destinations.  Sony mirrorless camera in underwater housing with dual Inon Z330 strobes used.
Bigfin reef squid (Sepioteuthis lessoniana) under water
Grey octopus sitting on top of the hand of a fisherman with green t-shirt at the harbor, legs of the octopus hanging down, lots of ships and buildings in the background
Multiple deep sea undersea Pharaoh Cuttlefish Sepia pharaonis in natural environment. High quality photo
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. \nLembeh Strait, Indonesia\n1°28'47.196 N 125°14'12.42 E at 16m depth by night
Bigfin Reef Squid
Extreme close up of Octopus eye and skin texture, macro underwater photography. Australia.
the squid
Sea life. Octopus eye- Cephalopod. Underwater abstract. Close-up
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