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Maja Squinado (European Spider Crab) in it's natural environment on the sea bed off Portwinkle in south Cornwall.
spanner crab in a saltwater aquarium.
A Peacock mantis shrimp, Odontodatyllus scyllarus, guards her clutch of eggs in a burrow on a reef in Indonesia. After internal fertilization the female carries the eggs until they hatch.
Have you ever wondered what's it like living under the sea
Arrow crab (Stenorhynchus lanceolatus), also known as Spider Crab on a diver hand. Diving in Puerto Mogán, Canary islands, Spain.
Porcelain Crab on Anemone
Blue eye hermit crab, (Dardanus tinctor) Sea life  Underwater macro photo  ,  dark blue background,   Scuba diver point of view. Mediterranean Sea. \nPhotographed with Nikonos V, 35mm lens on Fujichrome Velvia 50
Hermit crab in shell
Stenorhynchus seticornis, the yellowline arrow crab or simply arrow crab, is a species of marine crab.
Munida quadrispina is a species of squat lobster. The claws, chelipeds, are exceptionally long. There are small spines on the chelipeds. Monterey Bay, California.
Puget sound king crab seen at Long island
The Spotted Ascidian Shrimp Periclimenaeus sp. occurs in the Indo-Pacific region, including Indonesia. Shrimps of the genus Periclimenaeus are known for their symbiotic relationships with various marine invertebrates, particularly ascidians and sponges. Periclimenaeus shrimps typically inhabit the internal cavities of their ascidian hosts, where they find both shelter and food. Unlike some solitary ascidians that have large siphons or internal spaces where shrimps can hide, Botryllus is a colonial ascidian, forming encrusting mats with small inhalant and exhalant openings. This means the shrimp lives on the surface of the colony not inside it. By mimicking the color and texture of the host, the shrimp uses the colony's structure as camouflage against predators.\nColonial ascidians, or sea squirts, are sessile marine invertebrates forming colonies of interconnected zooids that share a common tunic. They filter feed using specialized siphons and reproduce both sexually and asexually, often via budding. Among them, Botryllus species form striking colonies with awesome zooid arrangements. While ecologically important as filter feeders and habitat providers, some colonial ascidians, including Botryllus, can become invasive, impacting ecosystems and fouling marine structures. \nLembeh Strait, North Sulawesi, Indonesia \n1°28'47.814 N 125°15'1.26 E at 20m depth
Mantis shrimp close-up. Sipadan island. Celebes sea. Malaysia.
Brachyura
Blue ring octopus shot in Raja Ampat, West Papua, Indonesia.
Water animals Underwater Sea life. Starfish - Sea star,  in sea Sea life Mediterranean sea Scuba diver point of view
Orange squat lobster on a sponge shot with a light snoot gives it a pop. From Tulamben, Indonesia.
Grapsus adscensionis on the volcanic rocks in the coast, Tenerife
Hermit crab with symbiotic anemone on the reef in Florida.
Blue Crab Underwater
Harbour crab and black goby digging in sand off the Welsh coast
One wild Hermit Crab (Dardanus megistos) is camouflaged in it’s shell on this underwater coral reef.
Common octopus in Adriatic sea, Croatia
Underwater sea background . Abstract underwater sea background.
Hermit crab (Pagurus prideaux). Wild life animal.
Hermit crab isolated
Mucilage in Marmara sea in Turkey
Pagurus samuelis, the blueband hermit crab, is a species of hermit crab from the west coast of North America, and the most common hermit crab in California. It has distinctive blue bands on its legs. It prefers to live in the shell of the black turban snail, and is a nocturnal scavenger of algae and carrion. Monterey Bay, California.
Starfish against the glass of an aquarium exposing their underside to see all the sucker feet
Plagusia depressa, Playa de los Cancajos, La Palma. Canary islands underwater sealife.
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