This would be the longnose butterflyfish know to Hawaiians as lauwiliwilinukunkuoio.
In second place would probably be the Hawaiian trigger fish known as humuhumunukUnukuapuaa
The oarfish is the longest bony fish in the ocean, also known as a ribbon fish. It can grow up to lengths of over 50 feet and is typically found in deep ocean waters. Oarfish are known for their elongated, ribbon-like bodies and distinctive red fins.
the longest fish tail is 9ft 11inches
kitty fish
at the least you have the koi fish by name of hanako which lived a reported 226 years in japan.
The answer is shark.
The longest name for a body of water in the United States is "Lake Chargoggagoggmanchauggagoggchaubunagungamaugg," located in Webster, Massachusetts. The name, derived from the local Nipmuc language, roughly translates to "You fish on your side, I fish on my side, and nobody fishes in the middle." This lake is often referred to simply as "Lake Webster" for convenience.
it is the cartilaginous fish.s
Humuhumunukunukuapua'a (22 letters, and the name of a trigger fish) is often said to be the longest word, but there is another fish called lauwiliwilinukunuku'oi'oi (25 letters). There may a word longer than this. And incidentally, the 'okina (depicted by '), known in English as a glottal stop, is considered a letter in Hawaiian and so is included in the letter count. There are also personal names, formed by combining words into a phrase, which can be even longer. But since personal names are proper nouns and not common nouns, they would not count as the longest Hawaiian word. Longest name, perhaps, but not longest word.
Nathan Longest's birth name is Nathan Ewell Longest.
shark
Guppy
The longest name is Stanislav Burgorovich Kovelev