Halechiniscidae, Thulin, 1928

Pérez-Pech, Wilbert Andrés, Jesús-Navarrate, Alberto De, Demilio, Erica, Anguas-Escalante, Abril & Hansen, Jesper Guldberg, 2020, Marine Tardigrada from the Mexican Caribbean with the description of Styraconyx robertoi sp. nov. (Arthrotardigrada: Styraconyxidae), Zootaxa 4731 (4), pp. 492-508 : 496

Halechiniscidae sp.

Material examined: 1 specimen ( ML: 1 indeterminable gender)

Remarks: The single specimen exhibits a peculiar combination of characteristics of both of the genera Halechiniscus Richters, 1908 and Paradoxipus Kristensen & Higgins, 1989 . All digits of leg I are of the Paradoxipus - type (i.e. each digit with a proximal suction disc and a distal claw), while the digits of legs II–IV are of the Halechiniscus - type (i.e. each digit bears only a distal claws). This complex pedal morphology places the specimen outside of any known genus. No further evidence as to whether the specimen belongs within Halechiniscinae Thulin, 1928 or Orzeliscinae Schulz, 1963 can be gathered due to unfavorable orientation and unsatisfactory preservation of the slide-mounted specimen.