The Order
Ophidiiformes
contains these Families:
198. Carapidae [carapids (pearlfishes)]
199. Ophidiidae [cusk-eels]
200. Bythitidae [viviparous brotulas]
201. Aphyonidae [aphyonids]
202. Parabrotulidae [false brotulas]
203. Ranicipitidae [tadpole cod]
204. Euclichthyidae [eucla cod]