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Sea urchin
Serene underwater environment surrounding Boracay Island, located in the Philippines. The image showcases a stone coral formation with a black urchin resting upon it. The black urchin is characterized by long, slender needles. The underwater scene features clear blue water with visible sunrays, adding a touch of natural illumination to the photograph.
Plate LPS Coral
Long-spined sea urchin (Diadema antillarum) on the coral reef of Guadeloupe (Caribbean, France)
Brissus unicolor
Tropical salt water fish Striped burrfish (Chilomycterus schoepfi)
Black sea urchin (Arbacia lixula) undersea, Aegean Sea, Greece, Halkidiki
Crown of thorns starfish, Acanthaster ellisii, Sea of Cortez, Mexico. Sea star. Red and orange starfish on a rock.
Blue triggerfish (Pseudobalistes fuscus), fish at night resting on the bottom under the coral reef, Red Sea, Marsa Alam, Abu Dabab, Egypt
A sunburst sea anemone in a tidal pool on the coast of Newport Beach, California during the winter.
Stardust Discus fish - (Symphysodon aequifasciatus)
The genus Acropora has the largest number of species of all the hard corals, and they are among the important building blocks of a reef. Larger colonies are more commonly seen on undisturbed and remote reefs. Many species grow into branching forms that give rise to common names like \
Underwater photo of Purple Sea Urchin in natural habitat the sea with yellow coral in background. Blue sea
Colorful Coral Reef Teeming with Exotic Fish. Lively and colorful coral reef in a vibrant underwater world. Diverse array of tropical fish swimming freely in their aquatic environment, creating a mesmerizing scene for nature and animal enthusiasts alike.
close up of inflated puffer fish as known as blow fish or balloon fish
Crown of thorns starfish, Acanthaster ellisii, Sea of Cortez, Mexico. Sea star. Red and orange starfish on a rock.
sea bottom with fish and algae as a background
Wide angle coral reef scenes with fish
The Splendid Toadfish (Sanopus splendidus) is only found on the island of Cozumel in Mexico
Gabriela's Tambja, Dorid Nudibranch
Backlighting of a common purple sea urchin on a reef at California's Channel Islands National Park brings out its true beauty.  Spines are to protect itself from predators.
Sea Urchin on Rock Near Ocean Background
Ricordea Mushroom (Ricordea yuma)
flamingo tongue cowrie on sea fan
The Giant Clam Tridacna gigas, the largest species of bivalve molluscs, occurs in the tropical Indo-Pacific Ocean in a depth range from 0-35m. The outer side of the shell is designed to be encrusted by all kind of sessile animals. Max. recorded size is 137cm and 500kg! In addition the ecological role of Tridacna gigas, shells of this bivalve species are useful bioarchives for past climate and environmental reconstructions. This specimen is from southwest Peleliu Island, Palau, Micronesia, 7°7'39.62 N 134°17'31.01 E at 16m depth
Tonicella lineata is a very colorful species of chiton from the North Pacific.
Anthopleura xanthogrammica, or the giant green anemone, is a species of intertidal sea anemone of the family Actiniidae. Other  names for this anemone include green surf anemone, giant green sea anemone, green anemone, giant tidepool anemone, anemone, and rough anemone.  Salt Point State Park, California.
macro close up of puffer fish / blow fish or diodon holocanthus underwater in natural defenses mode
The landscape of the beaches of Bali, Pulo Aceh at low tide near dusk with colored reefs and sunset
Free Images: "bestof:Striped sea urchin hires.jpg en A stunning example of a striped sea urchin living in the twilight zone Image captured by the Little Hercules ROV at 279 meters"
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