A checklist of halacarid and hydrachnid mites (Acari, Halacaridae & Hydrachnidia) associated with sponges (Porifera) Author Chatterjee, Tapas text Zootaxa 2021 2021-11-29 5072 2 101 129 journal article 3184 10.11646/zootaxa.5072.2.1 37781dcd-ffff-4c1e-9483-fb726b42b440 1175-5326 5733656 F11C5EFE-8B45-4F58-B7E9-741D27EB47B6 Halacarellus agauiformes (Newell, 1951) Report associated with sponges: This species was reported from Kagamil Pass , Islands of the Four Mountains , Aleutian Islands , Alaska , at 74.68 m ( 245 feet ) depth among Boulder and gravel bottom covered with corals, sponges, and hydrozoa. This was also reported from Oglala Pass, Rat Islands , Aleutian Islands , Alaska at 54.66 m ( 180 feet ) depth among sediments inhabiting bryozoans, hydrozoans, and sponges ( Newell 1951a ) .