FAMILY LITHOGLYPTIDAE AURIVILLIUS, 1892

Diagnosis: Monophyletic in molecular analysis. Females with developed opercular bars and comb collar, operculum with rows of massive multifid scales, often associated with opercular pores and papillae; protopod of mouth cirri two-segmented, mouth appendages developed, terminal cirri multisegmented, biramous; caudal appendages present or absent; thoracic lappets developed; intestine with anus. Dwarf males without a pair of lobes at the base of attachment antennules; posterior end with apertural slit.