Tanarctinae

Jørgensen, Aslak, Boesgaard, Tom M., Møbjerg, Nadja & Kristensen, Reinhardt M., 2014, The tardigrade fauna of Australian marine caves: With descriptions of nine new species of Arthrotardigrada, Zootaxa 3802 (4), pp. 401-443 : 432

Subfamily Tanarctinae Renaud-Mornant, 1980

Diagnosis (following Jørgensen & Kristensen 2001): Halechiniscids with strongly telescopic legs that have lance-like tibia and conical tarsus. External claw always simple with a prominent calcar; the internal claw may have a small dorsal spur. Leg I–III sense organs are spines; leg IV sense organs strongly modified to long clava-like or bifurcate appendages. Epicuticle may have small dorso-lateral ‘hour-glass’ or very long rod-like pillars. The two dorso-lateral spherical seminal receptacles with spindle-shaped ventral ducts open close to or lateral for the female gonopore.

Type genus: Actinarctus Schulz, 1935

Additional genera: Tanarctus Renaud-Debyser, 1959 ; Zioella Renaud-Mornant, 1987 .