A checklist of halacarid mites (Acari, Halacaridae) associated with echinoderms (Echinodermata) Author Chatterjee, Tapas text Persian Journal of Acarology 2021 2021-10-15 10 4 359 369 journal article 10.22073/pja.v10i4.68340 2251-8169 Halacarus otiosus Bartsch, 1993 Report associated with echinoderms – This species was found in washing of crinoids (Echinodermata, Crinoidea) from 250 m depth of Palmer Archipelago ( Bartsch 1993b ). Remarks – Bartsch (1993b) commented that this species is believed to live on other organisms and within scrub-like algae.