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The fire eel's base coloring is dark brown/grey, while the belly is generally a lighter shade of the same color. Several bright red lateral stripes and spots mark the body and vary in intensity depending on the age and condition of the individual. Usually, the markings are yellow/amber in juvenile fish, changing to a deep red in larger ones.
These fish have an eel-like body. The largest species can reach a maximum length of 1 m (3.3 ft). [3] Very characteristic of this group is the long nose appendage with two tubulated nostrils. [3] Mastacembelids have a series of well-separated dorsal spines on their back, hence the name of their family, spiny eels. [3]
Common names of fish can refer to a single species; to an entire group of species, such as a genus or family; or to multiple unrelated species or groups.Ambiguous common names are accompanied by their possible meanings.
Although Schmidt did not directly observe eel spawning, or even find ready-to-spawn adult eels, he deduced the following about the life history of the eel, based on the size distribution of the leptocephali he collected: The larvae of European eels travel with the Gulf Stream across the Atlantic Ocean from the Sargasso Sea, and grow to 75–90 ...
Although its shape resembles an eel due to its slender and leg-less body, the monkeyface prickleback does not belong to the order Anguilliformes, which includes true eels, instead, it is classified under either the Perciformes, [1] along with nearly half of all bony fish, or the Scorpaeniformes, [2] according to different authorities.
All species in this genus were formerly classified in Monopterus, but a 2020 study found them to represent a distinct monophyletic clade from Monopterus.Due to this, the genus name Ophichthys, previously coined by William Swainson, was revived to be used for them.
Ilyophinae has a name based on that of its type genus Ilyophis, this name combines ilys which is Greek for "mud", probably an allusion to the soft, silty substrate habitat of I. brunneus, with ophis, meaning "serpent", referring to the snake-like shape of eels.
Ophidiiformes / ɒ ˈ f ɪ d i. ɪ f ɔːr m iː z / is an order of ray-finned fish that includes the cusk-eels (family Ophidiidae), pearlfishes (family Carapidae), viviparous brotulas (family Bythitidae), and others.