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Xiphophorus is a genus of euryhaline and freshwater fishes in the family Poeciliidae of order Cyprinodontiformes, native to Mexico and northern Central America. Xiphophorus species can be divided into 3 groups based on their evolutionary relationships: platyfish (or platies), northern swordtails, and southern swordtails.
The yellowtail damselfish (Microspathodon chrysurus) is a species of damselfish native to tropical areas such as the Caribbean coast of Panama. Damselfish are abundant in coral reef environments. The International Union for Conservation of Nature lists this fish as being of “least concern”. The species is exploited on a minor scale, for ...
Sky blue anterior fading to yellow towards the tail, with a black stripe running the eye to the base of the caudal fin. 8 cm (3.1 in) Sailfin blenny: Emblemaria pandionis: Yes: Very similar to Salarias fasciatus but slightly darker and with a much larger dorsal fin. 5 cm (2.0 in) Segmented sailfin blenny: Salarias segmentatus: Yes: 10 cm (3.9 in)
C. parasema is blue with a distinctive yellow caudal fin (tail fin). The yellow coloring may extend up to the back of the anal and dorsal fins, especially in species from Papua New Guinea. These fish may also have yellow pelvic or pectoral fins. However, yellow is never found on the backs or bellies of Yellowtail Blue damsels.
Yellowtail snapper have a distinct yellow lateral band beginning at the snout that gets wider towards the forked tail, which is completely yellow. The rest of the fish is an olive to bluish black color with yellow spots above the lateral band. [8] [9] The dorsal fin is yellow while the anal and pelvic fins are whitish. [10] by bony spines. The ...
A yellowtail may be any of several different species of fish. Most commonly the yellowtail amberjack Seriola lalandi is meant. In the context of sushi, yellowtail usually refers to the Japanese amberjack, Seriola quinqueradiata. Other species called simply "yellowtail" include: Atlantic bumper, Chloroscombrus chrysurus
Larger fishes are uniformly dark, greenish brown, turning greenish blue only with age, but they do not undergo as radical a colour change with growth as do other scarids. They have nine dorsal spines, 10 dorsal soft rays, 3 anal spines, and 9 anal soft rays. The tail is crescent-shaped in large terminal males, while in juveniles it is rounded.
The specific name flavidus means "yellowish", thought to be a reference to the "yellowish green" colour on the flanks, which Ayres said easily differentiates this species "as they lie in heaps upon the fish-stalls" from the "closely allied" black rockfish (S. melanops) Some authorities suggest that the name refers to the "bright yellow tail ...