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Caribbean reef squid ,Sepioteuthis sepioidea, commonly called the reef squid,
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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Close-up of fish
The Indo-Pacific reef squid, also known by its scientific name Sepioteuthis lessoniana, is a species of cephalopod mollusk belonging to the family Loliginidae. It is commonly found in the tropical and subtropical waters of the Indo-Pacific region, including the Indian Ocean, the Red Sea, and the western Pacific Ocean.\n\nThese squids have a unique and fascinating appearance. They have a torpedo-shaped body with a mantle that can reach lengths of up to 30 centimeters (12 inches) in adulthood. The mantle is soft and muscular, allowing the squid to propel itself through the water with remarkable speed and agility.\n\nThe coloration of the Indo-Pacific reef squid is highly variable and can change rapidly to match its surroundings, making it an expert in camouflage. The body typically features a combination of white, brown, red, or purple hues, which can be adjusted to blend in with coral reefs, sandy bottoms, or open water.\n\nOne of the distinguishing features of these squids is their large, expressive eyes. They have well-developed vision, enabling them to spot prey and predators in their environment. They also possess eight arms and two long tentacles equipped with suckers, which they use to capture and manipulate their prey.\n\nIndo-Pacific reef squids are carnivorous and primarily feed on small fish, crustaceans, and other small invertebrates. They are active hunters and use their agile swimming and quick movements to capture their prey. They have a beak-like mouth that they use to tear apart their food before ingesting it.
Close up shot of an octopus in the blue sea.
Mollusks, type Mollusca. Cephalopods. Order Squid - Cuttlefish squid.\nSquids (lat. Teuthida) are a detachment of decapod cephalopods. Usually they have dimensions of 0.25-0.5 m.
Caribbean reef squid (Sepioteuthis sepioidea) in Grand Cayman - Cayman Islands
Photo taken in Tokyo, Japan
fish under Thai sea
spreading ink Colorful Squid cuttlefish underwater close up portrait in maldives
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.\n\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.\n\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. \n\nLembeh Strait, Indonesia\n1°28'47.196 N 125°14'12.42 E at 2m depth
two squid in the Pacific Ocean
Underwater shot at sea with sea life, fish, corals and turquoise water
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.
Extreme close-up of an octopus sleeping with closed eyes. Blurred tentacles in the foreground.
Reef Red Squid with Big Eyes Deep Underwater, Red Sea, Egypt. Ocean Cephalopod With Tentacles Swimming In The Depths.
Sea life. Octopus eye- Cephalopod. Underwater abstract. Close-up
Cuttlefish Port Phillip Bay Victoria
History Under the Sea.
Underwater photo from a scuba dive in tropical waters
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.
A large squid close-up, swimming in the green aquarium fish tank illuminated with the glowing orange bright light on the street fish market in Daegu City, South Korea
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 2m depth
Squid are cephalopods of the two orders Myopsida and Oegopsida,
an underwater shot of hawaiian fishes, reef, and sand. Taken in Kauai, Hawaii, during the day.
Baby Calamari Squid Closeup in the Ocean
Extreme close up of Octopus eye and skin texture, macro underwater photography. Australia.
Underwater color images of the Bigfin Reef Squid,  Sepioteuthis lessoniana
Octopus is resting on the sand and is camouflaged to blend in with the coral. The background consists of coral and rocks.
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