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The true Kuhli loach (Pangio kuhlii), which can be used synonymously with "coolie" loach, [2] [3] occasionally referred to as eel loach, is a small eel-like freshwater fish belonging to the loach family . They originate from the island of Java in Indonesia. [4] [5] This serpentine, worm-shaped [6] [7] creature is very slender and nocturnal. Its ...
The slender snipe eel (Nemichthys scolopaceus), also known as the deep sea duck, is a fish that can weigh only a few ounces, yet reach 5 feet or 1.5 m in length.Features include a bird-like beak with curving tips, covered with tiny hooked teeth, which they use to sweep through the water to catch shrimp and other crustaceans.
The pinhead pearlfish is a slender, tapering, eel-like fish that can grow to a length of 30 cm (12 in). It has very small eyes and near the jaws are star-shaped melanophores which are more numerous in older specimens. This fish has no scales or pelvic fins, but does have short pectoral fins and an elongated dorsal fin with 31 to 42 soft rays.
Like many other loaches, pond loaches have slender, eel-like body. The mouth of the loach is surrounded by three sets of barbels, which are used to sift through silt or pebbles to find food, and also to dig under gravel and sand to conceal the fish out of nervousness or self-defence, unlike the other loaches who use the spines beneath the eyes.
Fish of this family are long, slender, and generally steely blue or silver in colour, giving rise to their name. They have reduced or absent pelvic and caudal fins , giving them an eel -like appearance, and large fang-like teeth.
The serpent eel or sand snake-eel (Ophisurus serpens) is an eel found in the eastern Atlantic Ocean, western Mediterranean Sea, western Indian Ocean, western Pacific Ocean and the north-east and west coast of North Island in New Zealand. It is an elongated, slender fish with a length of up to 250 centimetres.
Snipe eels have the long, slender body typical of eels. They are distinguished by their very slender jaws that separate toward the tips as the upper jaw curves upward and which appear similar to the beak of the bird called the snipe. The vent may be near the throat (as in N. scolopaceus) or further back on the body (as in A. gilli and A. infans).
Clarias species are recognized by their long-based dorsal and anal fins, which give them a rather eel-like appearance. These fish have slender bodies, a flat, bony head, and a broad, terminal mouth with four pairs of barbels. Many species also have a large, accessory breathing organ composed of modified gill arches.