全头亚纲
Holocephali \Hol`o*ceph"a*li\, n. pl. [NL., from Gr. "o`los whole + ? head.] (Zo["o]l.) An order of elasmobranch fishes, including, among living species, only the chim[ae]ras; -- called also {Holocephala}. See {Chim[ae]ra}; also Illustration in Appendix.
Holocephali n : chimaeras and extinct forms [syn: {subclass Holocephali}]