Subfamily Florarctinae Renaud-Mornant, 1982

Diagnosis (following Kristensen 1984): Arthrotardigrades of the family Halechiniscidae Thulin, 1928 with cuticular aliform expansions. Complete cephalic sense organs with secondary clavae transformed to dome-shaped papillae or H-shaped flat sacs. Four digits with claws present in adults; digitus externus with a hook-shaped pedunculus; uncus with a calcar externum. Females with two seminal receptacles, each consisting of a spheroid vesicle and an S-shaped genital duct.

Type genus: Florarctus Delamare Deboutteville & Renaud-Mornant, 1965 .

Additional genera: Ligiarctus Renaud-Mornant, 1982; Wingstrandarctus Kristensen, 1984 .