Featherfin Squeaker

The Featherfin Squeaker (Synodontis eupterus) is a freshwater fish in the catfish family. It is also known as the Featherfin Synodontis and the Featherfin Catfish. 

The Featherfin Squeaker is dark-brown with a high feather-like dorsal (back) fin. It has light, yellowish spotted markings all over its body and fins. It has a sucker mouth and a wide head. 

It is called a Squeaker because it communicates with each other in squeaking noises.

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What is the difference between the Oscellate River Stingray and the Thornback Ray?

What is the difference between the Oscellate River Stingray (Potamotrygon motoro) and the Thornback Ray (Raja clavata)?

The Oscellate River Stingray is a marine (saltwater) fish, whereas the Thornback Ray is a freshwater river fish. 

Both the Oscellate River Stingray and the Thornback Ray have two raised eyes, close together, on the top of their backs. 

The Oscellate River Stingray has a beige or brown body with numerous yellow-orange dark-ringed spots, whereas the Thornback Ray varies in colour from light-grey or light-brown with either dark or light blotches.  

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Ocellate River Stingray

The Oscellate River Stingray (Potamotrygon motoro) is a freshwater ray in the Potamotrygonidae family of stingrays. It is also known as the Peacock-Eye Stingray or the Black River Stingray.

The Oscellate River Stingray has a flat, round-shaped, beige or brown body with numerous yellow-orange spots that have dark rings around them. Its underbelly is smooth and white. Its eyes are located on its back and are raised. 

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Witch Flounder

The Witch Flounder (Glyptocephalus cynoglossus) is a marine (saltwater) fish in the Pleuronectidae family of flatfish. It is also known as the Righteye Flounder, the Torbay Sole, or the Grey Sole.

The Witch Flounder is a right-eyed flatfish, with a thin and laterally compressed, round brownish-grey body. On its upper side—its right-eyed side—it is often mottled in colour. It is white with small black spots on its under side—its blind side. It has a small head and a small mouth. It has a single series of small incisor-like teeth. There is a short, sharp spine pointing forward in front of its bottom fin. 

It is called Righteye because its right eye is on the top (back) of its body. Therefore, from above, only one eye can be seen.

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Saddleback Clownfish

The Saddleback Clownfish (Amphiprion polymnus) is a small tropical marine (saltwater) reef fish. It is also known as the Yellowfin Anemonefish or the Panda Clownfish.

The Saddleback Clownfish has brownish-black and white vertical bands, with a white ‘saddle’ in the middle of its back. The first white band is behind its eyes. It also has yellow fins and yellow eyes. It has an oval-shaped body.

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Smith’s Cichlid

The Smith’s Cichlid (Julidochromis marksmithi) is a tropical freshwater fish in the Cichlidae family of cichlids. It is also known as a Julie Cichlid.

The Smith’s Cichlid has an elongated body with black, white, and yellow horizontal stripes from nose to tail. Its long dorsal (back) fin is white with black markings. Its eyes are black with yellow eye-rings.

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Siamese Flying Fox

The Siamese Flying Fox (Epalzeorhynchus kallopterus) is a freshwater fish in the Cyprinidae family. 

The Siamese Flying Fox has an elongated, cylindrical body with a brownish-black, horizontal band from its eye to its tail. It also has a thinner, golden-coloured line above and below the black line. It has white and black edges on its fins. Its mouth is slightly forward protruding with two pairs of small barbels (whisker-like structures). It has red eyes. 

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Silver Dollar

The Silver Dollar (Metynnis argenteus) is a freshwater tropical fish. It is a serrasalmid from the Characidae family – the serrated salmon family – such as the pacu and piranha. 

The Silver Dollar has a round, flat body that is laterally compressed (thin). It is silver all over, with a hint of red in its fins, especially its tail fin, and around its throat. During the breeding season, the male has two large black spots behind its pectoral fins, the red colour deepens, and a black margin (border) appears on his fins.

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Blue Gourami

The Blue Gourami (Trichogaster trichopterus) is a freshwater fish in the Osphronemidae family of labyrinthine fish. It is also known as the Dotted Threadfish, the Blue Threadfish, the Opaline Gourami, or the Three Spot Gourami. 

The Blue Gourami is blue-grey to ochre-brown, yellow-orange, and violet. It has the appearance of mother-of-pearl, opal, or iridescence. At the base of the tail fin and in the centre of its body are dark-brown or black spots. Its eyes are reddish-black. 

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Small-Spotted Catshark

The Small-Spotted Catshark (Scyliorhinus canicula) is a cartilaginous marine (saltwater) fish in the Scyliorhinidae family of dogfish. It is also known as the Sandy Dogfish, Lesser-Spotted Dogfish, or Round-Hound. 

The Small-Spotted Catshark has an elongated, slender body with a blunt head. Its skin is rough (like sandpaper). It is greyish-brown with dark-brown spots. Its underbelly is greyish-white. 

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Auratus Cichlid

The Auratus Cichlid (Melanochromis auratus) is a small freshwater fish in the Cichlid family. It is also known as the Golden Mbuna and the Malawi Golden Cichlid. 

The Auratus Cichlid is elongated with a silver sheen and black and white stripes on the upper half of its body. The male is dark brown or black with a light-bluish or yellow stripe. The female is bright yellow with black and white stripes. 

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Violescent Sea-Whip

The Violescent Sea-Whip (Paramuricea clavata) is a marine (saltwater) soft coral in the Plexauridae family. It is also known as the Purple Gorgonin. It is an animal, not a plant. 

The Violescent Sea-Whip is red or reddish-purple, but it may be partly yellow. It grows in the soil at the bottom of the ocean. It has branching arms, like a whip, that form a fan shape. The stem and branches are made from a protein called gorgonin, that forms a bony skeleton. Polyps protrude from the skeleton. The polyps have a central mouth disc with eight tentacles around the circular disc. 

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Boarfish

The Boarfish (Capros aper) is a marine (saltwater) fish in the Caproidae family.  

The Boarfish is reddish-orange with darker bands running vertically down its diamond-shaped body. It has large eyes, a protruded nose (like a pig’s nose) and a tube-like mouth. It has saw-toothed scales.

During breeding season, the male has orange lines on its body, and its dorsal (back) and ventral fins (near its stomach) turn red. During the breeding season, the female is orange and her belly and ventral fins turn silver. 

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Arapaima

The Arapaima (Arapaima gigas) is a large freshwater fish in the Arapaimidae family of bonytongue fish. It is also known as Pirarcu. 

The Arapaima has mainly grey to grey-green scales, with red flecks near its tail. It has an elongated body. It is an air-breather, so it has lungs, but it also has gills to breathe underwater. It surfaces for air about every 5-15 minutes.  

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