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Amia, commonly called bowfin, is a genus of ray-finned fish related to gars in the infraclass Holostei.They are regarded as taxonomic relicts, being the sole surviving species of the order Amiiformes and clade Halecomorphi, which dates from the Triassic to the Eocene, persisting to the present.
The bowfin (Amia calva) is a ray-finned fish native to North America. Common names include mudfish, mud pike, dogfish, grindle, grinnel, swamp trout, and choupique.It is regarded as a relict, being one of only two surviving species of the Halecomorphi, a group of fish that first appeared during the Early Triassic, around 250 million years ago.
Goodeid fish have internal fertilisation, with males positioning themselves with a flexible part of the front anal fin, separated by a notch, which makes up the andropodium. Embryos hatch out of the egg within the ovarian follicle, and possess trophotaeniae , ribbon-like structures that emerge from the cloaca in front of the anal fin, on the ...
The adipose fin is a soft, fleshy fin found on the back behind the dorsal fin and just forward of the caudal fin. It is absent in many fish families, but found in nine of the 31 euteleostean orders ( Percopsiformes , Myctophiformes , Aulopiformes , Stomiiformes , Salmoniformes , Osmeriformes , Characiformes , Siluriformes and Argentiniformes ...
Large aquariums exhibit a wide variety of species and animals in a large range of tanks. These are typically public aquariums and may also include oceanariums and dolphinariums, designed to showcase a diverse range of marine animals for the public. In operation Only aquariums with a total capacity of more than 10 million litres and/or a tank larger than 5 million litres are included in the ...
Juveniles of the Chinese high-fin banded sharks are also characterized by high and triangular dorsal finnage that extends up to the rear of the anal fin. The adult appearance is far less distinctive, as they are elongated in shape without the very high dorsal fin. [11] The thick and fleshy [5] lips bear small papillae without barbels.