Hypsibiidae Pilato

Marley, Nigel J., Mcinnes, Sandra J. & Sands, Chester J., 2011, Phylum Tardigrada: A re-evaluation of the Parachela, Zootaxa 2819, pp. 51-64 : 59-60

Family: Hypsibiidae Pilato <amended description>

Remarks. With the removal of the Isohypsibid types from this group the original familial description of the Hypsibiidae requires modification. Using Thulin (1928), Pilato (1969b; 1987) and Pilato and Binda 2010, this becomes: Diagnosis. Hypsibioidea. The claw pairs are usually dissimilar; the external claw exhibiting articulation (the basal section and secondary branch form a solid unit with the primary claw articulating with the secondary branch) while the internal claw has a rigid structure (a solid unit of basal section, secondary branch and primary branch). Claws Hypsibius - type forming a continuous arc between basal section and secondary branch. AISM hook shaped or (if the buccal tube is elongate) broad ridges.

Type genus. Hypsibius Ehrenberg, 1848 (amended by Thulin, 1928).

Composition. Subfamilies Hypsibiinae Pilato, 1969 (a), Diphasconinae Dastych, 1992 and Itaquasconinae Rudescu, 1964 .

Etymology. Family name derived from the type genus Hypsibius .