The early derivative water mites (Acari: Hydrachnidia, superfamilies Eylaoidea, Hydrachnoidea and Hydryphantoidea) of Madagascar Author Gerecke, Reinhard text Zootaxa 2020 2020-01-20 4727 1 1 77 journal article 24301 10.11646/zootaxa.4727.1.1 c36bd7d3-dbbf-4070-baaf-01783a413fa6 1175-5326 3613302 D8F65A52-614E-4888-8D93-6071DFBE710C Genus Teratothyasides Lundblad, 1941 Lundblad (1941) defined as a synapomorphy of Teratothyasides the fusion of all acetabula to the genital plates (in Teratothyas , at least one acetabulum on a basal sclerite not merged with the genital plate).