Agnatha

agnatha Translingual thumb|Hagfishes have spinal columns and skulls like the gnathostomes, but are jawless, with rounded mouthparts, adapted to rasping and sucking Etymology From mul grc ἀ- without + grc γνάθος jaw. Proper noun jawless fish Jawless fishes, that, like scaly fishes, reptiles, and mammals, have backbones and skulls but do not have paired jaws like humans or sharks, instead having round mouthparts that fasten onto their prey and rasp away bits that they ingest. superclass subphylum Chordata en mul 1889 w:Edward Drinker Cope Synopsis of the Families of Vertebrata The American Naturalist 23 852 The known members of the class Agnatha are a very small representation of those that once existed; and they present a great variety of character, having little affinity with each other. en mul 2007 Chad Thomas; et al Freshwater Fishes of Texas 6 Texas A&M University Press Current classification schemes have living fishes assigned to two superclasses (Agnatha, or jawless chordates, and Gnathostomata, or jawed chordates)[…]. infraphylum subphylum Chordata Synonyms agnathans Hypernyms superclass ; Chordata Craniata clade clade infraphylum ; Vertebrata subphylum subphylum Hyponyms subphylum mul Myxini, †Cephalaspidomorphi class, †Pteraspidomorphi class classes infraphylum mul Cyclostomata Coordinate terms mul Gnathostomata Descendants agnatha agnathan See also mul Ostracodermi References Hyperotreti 1 91606 1 mul terms with alpha privatives