Nomenclator, geographic and stratigraphic distribution of the family Triphoridae (Mollusca: Gastropoda) Author Bakker, Piet A. J. 0000-0003-4683-2083 Naturalis Biodiversity Center, Darwinweg 2, 2333 CR Leiden, The Netherlands. hannco.bakker@naturalis.nl Author Albano, Paolo G. 0000-0003-4683-2083 Stazione Zoologica Anton Dohrn, Villa Comunale, Naples, Italy. hannco.bakker@naturalis.nl text Zootaxa 2022 2022-01-11 5088 1 1 216 journal article 10.11646/zootaxa.5088.1.1 1175-5326 5836536 904D8C6D-A0C0-4D5A-960F-AEBACE141DF0 Viriolopsis B.A. Marshall, 1983 Original reference. Marshall 1983: 49 . Type species. Viriolopsis occidua B.A. Marshall, 1983 , by original designation. Remarks. Gender: feminine. Names of the species group taxa Between 1758 and the time of this publication, 958 names have been introduced as Triphoridae . 907 are herein listed as available names, these include valid names and synonyms. Fifty-two names are recognized as unavailable or invalid for various nomenclatural reasons specified in the ”Remarks” section for each name. Of these, 21 are primary homonyms, 22 are nomina nuda , five are unnecessary replacement names, and four names are unavailable for reasons explained in respective sections. Of the available species, 771 are extant and 146 are fossil species. Forty–one species are recorded as occurring both extant and in the fossil record. Varieties are considered subspecies following art. 45.6.4 of the ICZN.