The Bowmouth Guitarfish (Rhina ancylostoma) is a large, rare fish in the Rhinidae family of rays. It is also called the Shark Ray, Mud Skate, or Shortnose Mud Skate. It was difficult for scientists to classify, but now it is classified as a ray.
The Bowmouth Guitarfish has a distinctive appearance, with its back half that looks like a shark and its front half that looks like a ray. It is sandy brown or bluish-grey with white spots. Its underbelly is light-grey or white. It has prominent black markings on its pectoral fins. It has a wide, thick body with a rounded, wide snout (nose) and large shark-like, sickle-shaped dorsal (back) and crescent-shaped tail fins. Its mouth forms a W-shaped undulating line. There are multiple thorny ridges on its head and back.
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The Atlantic Mudskipper (Periophthalmus barbarus) is a marine (saltwater) fish in the Oxudercidae family. It is similar to the Goby. It is also found in freshwater and brackish water. It is amphibious – it can live in the water and on land – but it is not an amphibian (like a frog or toad) because it does not have lungs.
The Atlantic Mudskipper has a long brown or greenish body. During the mating season it develops coloured spots, such as red, green or blue. It has close-set, bulging eyes. It has forward fins that are similar to legs that enable it to walk, or skip, along the surface of the mud. It can even climb trees.
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What does the underbelly of a Stingray look like?
The underbelly of the Spotted Ray (Raja montagui) is white.
Its mouth, two nostrils, several gill slits, and a basal cartilaginous cage (like a rib cage) can be seen on its underbelly. The nostrils look like eyes, but its eyes are on the top (dorsal) side of its body.
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The Scalloped Hammerhead Shark (Sphyrna lewini) is an elasmobranch fish with a cartilaginous skeleton in the Sphyrnidae family of hammerhead sharks. It is also known as the Bronze Hammerhead, the Kidney-Headed Hammerhead, or the Southern Hammerhead.
The Scalloped Hammerhead Shark has a hammer-shaped head, called a cephalofoil. It is light-grey with a greenish tint and a white belly. Its mouth is small. Its nostrils and eyes are located on the sides of the hammer part of its head, and not in front. This allows a full circle of vision. It can see above it, below it, and all around it. It has gill slits on the side of its body.
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Sharks do not have lungs. They breathe through gills.
Sharks and rays have rows of gill slits on each side of their bodies, just behind their head.
Most sharks have pairs of gills slits.
The gill slits open to enable water to exit their body, and close to prevent water entering their body.
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