Catalogue of the family Ologamasidae Ryke (Acari: Mesostigmata) Author Castilho, Raphael C. Author Silva, Edmilson S. Author De, Gilberto J. Author Halliday, Bruce text Zootaxa 2016 4197 1 1 147 journal article 10.5281/zenodo.168445 449eccf3-b63f-437d-945f-85c5e01dadb2 1175-5326 168445 343. Hydrogamasellus calculus Karg, 1997 Hydrogamasellus calculus Karg, 1997a : 67 . Hydrogamasellus calculus .— Karg & Schorlemmer, 2009 : 83 ; Santos et al ., 2013 : 87 . Type depository. Arachnologischen Sammlung des Museums für Naturkunde , Berlin , Germany . Type locality and habitat. Farellones , Provincia de Santiago , Chile , 6 October 1965 , under stones in a stream.