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Hagfish, of the class Myxini / m ɪ k ˈ s aɪ n aɪ / (also known as Hyperotreti) and order Myxiniformes / m ɪ k ˈ s ɪ n ɪ f ɔːr m iː z /, are eel-shaped jawless fish (occasionally called slime eels). Hagfish are the only known living animals that have a skull but no vertebral column, although they do have rudimentary vertebrae. [3]
Lampreys / ˈ l æ m p r eɪ z / (sometimes inaccurately called lamprey eels) are a group of jawless fish comprising the order Petromyzontiformes / ˌ p ɛ t r oʊ m ɪ ˈ z ɒ n t ɪ f ɔːr m iː z /. The adult lamprey is characterized by a toothed, funnel-like sucking mouth.
The silver lamprey is an eel-like fish with an attenuate body composed of 49–52 clearly defined segments (i.e. myomeres, between the last gill slit and the anus).Silver lampreys possess a cartilaginous skeleton, and adults generally grow to a length of 12 inches and are silvery or bluish in color when spawning.
The sea lamprey has an eel-like body without paired fins. Its mouth is jawless, round and sucker-like, and as wide or wider than the head; sharp teeth are arranged in many concentric circular rows around a sharp, rasp-like tongue. There are seven branchial or gill-like openings behind the eye. Sea lampreys are olive or brown-yellow on the ...
The eggs of adults are preyed on by various species of fish and crayfish. [8] Southern brook lampreys in the larval stage serve as prey for a wide range of fish and bird species. [8] Adult forms are preyed upon by larger fish species such as the Northern pike (E. lucius), perch species, the European chub (S. cephalus), and the mudpuppy (N ...
Many varieties of fish, particularly cold-water oily fish like salmon, are rich in omega-3 fatty acids, “healthy” fats that support heart, brain and eye health.
Juvenile Pacific lamprey use their suction mouths to cling to the corner of a holding tank at Abernathy Fish Technology Center in southwest Washington. Juveniles/adults have a jawless, sucker-like mouth that allows them to become parasitic on other fish and sperm whales, attaching themselves with their suckers and feeding on blood and body ...
Fish are a lean, healthy source of protein—and the oily kinds, such as salmon, tuna, sardines, etc.—deliver those heart- and brain-healthy 6 of the Healthiest Fish to Eat (And 6 to Avoid) Skip ...