Dictionary search results

Showing 1-4 of 4 results

Agnatha US English

A group of primitive jawless vertebrates that includes the lampreys, hagfishes, and many fossil fishlike forms

Agnatha in Agnatha US English

A group of primitive jawless vertebrates that includes the lampreys, hagfishes, and many fossil fishlike forms

Agnatha in cyclostome US English

An eellike, jawless vertebrate with a round sucking mouth, formerly included in a group with the lampreys and hagfishes

Agnatha in ostracoderm US English

An extinct jawless fish of the Cambrian to Devonian periods, having a heavily armored body