Found 2 items, similar to agnatha.
English → English (WordNet) Definition: Agnatha Agnatha n : superclass of eel-shaped chordates lacking jaws and pelvic fins: lampreys; hagfishes; some extinct forms [syn: superclass Agnatha ]
English → English (gcide) Definition: Agnatha Agnatha \Agnatha\ n. a class of eel-shaped chordates with a cartilaginous skeleton lacking jaws, scales, and pelvic fins. Among these are the lampreys and hagfishes. There are some extinct forms. Syn: class Agnatha. [WordNet 1.5]