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The bluefish (Pomatomus saltatrix) is the only extant species of the family Pomatomidae. It is a marine pelagic fish found around the world in temperate and subtropical waters, except for the northern Pacific Ocean. Bluefish are known as tailor in Australia and New Zealand, [5] elf and shad in South Africa. [6] [7] It is a popular gamefish and ...
Deep black to tan fish with blue spots throughout. 50 cm (19.7 in) Blue line grouper: Cephalopholis formosa: No: Dark tan with horizontal blue stripes that are not particularly straight. The caudal fin has more of these stripes, and they radiate from the base of the fin out to the tips. 34 cm (13.4 in) Chalk bass: Serranus tortugarum: Yes
Although the body of the reef fish can vary in shade from light to dark blue, the dorsal, anal and caudal fins are golden blue. As juveniles, the edges on their dorsal and anal fins and the rings around their eyes are purple-blue, blue or blue-green. Their colors change during growth from a yellow juvenile, yellow tailed blue subadult and the ...
The exceptionally large pectoral fins enable this fish to glide for long distances above the surface of the water. The upper parts of the body are an iridescent dark blue colour while the belly is silvery white. The pectoral fins and tail fin are greyish while the other fins are colourless. Juvenile fish are sometimes barred with black. [3]
The sections are separated by pale blue bands edged with black. The mouth and lips are blue as are the rays of the pectoral and anal fins, while the dorsal and caudal fins are yellow, edged with pale blue. There is a long spine on the gill cover which is used in defence. Juvenile fish are dark blue with slightly curved, white lateral stripes. [4]
There is a dark blotch surrounding the spine on the caudal peduncle. The caudal, dorsal and anal fins are dark blue to black. When seen underwater the overall colour is black broken by a lighter band on the caudal peduncle. [6] This species has a maximum standard length of 45 cm (18 in). [7]
Paracanthurus hepatus is a species of Indo-Pacific surgeonfish.A popular fish in marine aquaria, it is the only member of the genus Paracanthurus. [2] [3] A number of common names are attributed to the species, including regal tang, palette surgeonfish, blue tang (leading to confusion with the Atlantic species Acanthurus coeruleus), royal blue tang, hippo tang, blue hippo tang, flagtail ...
The teeth of other species are straight at all ages. [3] The houndfish also has a more stout, cylindrical body and a shorter head than other needlefishes. [2] They have dark blue backs and silver-white sides and are plain white ventrally. [4] A houndfish has a distinct keel on the caudal peduncle, and the caudal fin itself is deeply forked. [2]