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The round-tailed paradise fish (Macropodus ocellatus) is a species of gourami native to eastern Asia, where it is found in Korea and China. It is also found in Japan but it is believed that they were introduced from Korea in the 1910s. It is also known to occur in the Amur Basin of Russia, but that is believed to be due to introductions. It ...
The Mexican round tail chub (Gila minacae) is a species of freshwater fish belonging to the genus Gila within the Leuciscidae family.Endemic to North America and Mexico this species can be characterized by its round tail and is known for its ecological significance within freshwater ecosystems.
Coryphaenoides rupestris is a species of marine ray-finned fish in the family Macrouridae. Its common names include the rock grenadier, the roundnose grenadier and the roundhead rat-tail. In France it is known as grenadier de roche and in Spain as granadero de roca. It is a large, deep-water species and is fished commercially in the northern ...
The roundtail chub (Gila robusta) is a cyprinid fish in the genus Gila, of southwestern North America. It is native to the Colorado River drainage basin, including the Gila River and other tributaries, and in several other rivers. It is part of the "robusta complex", which includes the Gila robusta robusta, G.r. grahami, and G.r. seminuda.
The bowfin has a rounded heterocercal tail that resembles a homocercal tail. This type of tail gives the body a streamlined shape which allows the bowfin to improve its swimming ability by reducing drag. These types of tails are common in fish with gas bladders, because the bladder supplies the fish with natural buoyancy. [34]
The mature cobia has a forked, slightly lunated tail, which is usually dark brown. The fish lacks a swim bladder. The juvenile cobia is patterned with conspicuous bands of black and white and has a rounded tail. The largest cobia taken on rod and reel came from Shark Bay, Australia, and weighed 60 kg (135 lb).
The Bristol shubunkin is the only wild fish to have a heart-shaped tail. Double tail types. Fantailed - This is the standard tail type of fancy goldfish. It is a tail of the common goldfish that is doubled. It is also called a comet-tail, but with fairly shorter tail length and less sharp forks than a true comet-tail.
The ranchū tail meets the caudal peduncle at a 45-degree angle, giving the fish a unique swimming motion. The tail lobes are rounded, and all other fins are paired. [3] Compared to lionheads, ranchū have a particularly down-turned tail and tail fin. [2] Ranchū have arched backs and much shorter tails, which are tucked in at a 45-degree angle ...