Any of the bony or cartilaginous structures forming the framework of the mouth, usually vertically opposed, often bearing teeth and primarily used for acquisition of food. Often modified in fishes to form complex protrusible or sucking arrangements, for example.

Of or relating to the neck or throat. Sometimes used in reference to a fish possessing pelvic fins located in front of the pectoral fins.

In zoological nomenclature, the more recently-established homonym if two or more exist.

In zoological nomenclature, the more recently-established synonym if two or more exist.

Not yet fully mature though mostly similar in form to an adult specimen; young.