R. Canestrini, 1881 : 1078 Gamasus littoralis R. Canestrini, 1882 : 48 G. Canestrini, 1884b : 1586 Hydrogamasus littoralis Berlese, 1892c : 6 Halbert, 1920 : 120 Lee, 1970 : 68 Karg, 1993c : 374 Catalogue of the family Ologamasidae Ryke (Acari: Mesostigmata) Castilho, Raphael C. Silva, Edmilson S. De, Gilberto J. Halliday, Bruce Zootaxa 2016 4197 1 1 147 3N733 [207,485,1959,1984] Arachnida Ologamasidae Hydrogamasus Animalia Mesostigmata 83 84 Arthropoda species littoralis     Gamasus litoralisG. &  R. Canestrini, 1881: 1078.     Gamasus littoralis.—G. &  R. Canestrini, 1882: 48;  G. Canestrini, 1884b: 1586.    Hydrogamasus littoralis.—  Berlese, 1892c: 6; 1892f: 72;  Halbert, 1920: 120;  Lee, 1970: 68;  Karg, 1993c: 374.     Typedepository.Istituto Sperimentale per la Zoologia Agraria, Florence, Italy.    Typelocality and habitat. Lido de Venezia, Italy, under stones washed by salt water in a lagoon. Note.In the original description, the name of this species was spelled  Gamasus litoralis. G. & R. Canestrini(1882) changed it to  Gamasus littoralis, and all subsequent publications on the species have used the changed spelling. We therefore retain the spelling  H. littoralisin the interests of stability. 1412762548 [151,1043,260,285] la Zoologia Agraria Italy Italy 84 85 1 holotype 1412762559 Lido de Venezia & G. & R. Canestrini Italy Italy 84 85 1 holotype