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Close Up of Shortfin eel ,Anguilla bicolor isolated on white background
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.
The spotted snakehead, is a species of snakehead. It is found in the Indian Subcontinent and nearby areas, ranging across Afghanistan, Pakistan, India, Sri Lanka, Nepal, Bangladesh, Myanmar and Tibet.
These garden eels are hovering over the sandy bottom of their aquarium.
Black Sea, European flounder (Platichthys flesus luscus) floats in the water column
Aquatic (fresh water) nematode living in pond water among cyanobacteria. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
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.
Selective focus of The zig-zag eel (Mastacembelus armatus), also known as the tire-track eel, tire-track spiny eel or marbled spiny eel.
Fresh cat fish for cooking isolated on white background. Concept , freshwater fish in Thailand and Asia countries.  It can be cooked in various delicious menu.
Swell shark, Cephaloscyllium ventriosum, from central California to the Gulf of California
Sea lampreys are considered a pest in the Great Lakes region. The species is native to the inland Finger Lakes and Lake Champlain in New York and Vermont.
titan triggerfish
Indian pike conger isolated on white, congresox talabonoides
Red tailed catfish
A live snakehead fish isolated on white background
Otters thrive on the Los Llanos of Colombia
Fresh eel
Chiton, Tripoplax regularis. on a rock at Salt Point State Park in Sonoma County, California.
The reedfish, ropefish (more commonly used in the United States), or snakefish, Erpetoichthys calabaricus, is a species of fish in the family Polypteridae alongside the bichirs. It is the only member of the genus Erpetoichthys. It is native to fresh and brackish waters in West and Central Africa. The reedfish possesses a pair of lungs in addition to gills, allowing it to survive in very oxygen-poor water. It is threatened by habitat loss through palm oil plantations, other agriculture, deforestation, and urban development
Geirangerfjord near Hellesylt in Norway.  This is seaweed in the Fjord.
conger isolated on white background
Electric eel
Mudskipper (Pseudapocryptes elongatus) is natural fish, this is delicious fish so that ussualy use i Viet Nam.
Porcupinefish are fish belonging to the family Diodontidae, also commonly called blowfish, balloonfish and globefish
amazing inhabitants of the microworld under a microscope
The Arctic grayling (Thymallus arcticus) is a species of freshwater fish in the salmon family Salmonidae. T. arcticus is widespread throughout the Arctic and Pacific drainages in Canada, Alaska, and Siberia, as well as the upper Missouri River drainage in Montana.  Wyoming.
Catfish isolated on white background. Clipping path inside.
Aquarium tropical fish: otocinclus
Aquarium: Fish: Immobile Lung Fish
an eel searches for food on the Los Llanos region of Colombia
Free Images: "bestof:Lepophidium profundorum.jpg Blackrim cusk-eel Lepophidium profundorum From plate 87 of Oceanic Ichthyology by G Brown Goode and Tarleton H Bean published 1896"
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