Reef Life Survey (RLS) offers you the opportunity to search and download their survey data that has been collected globally; you can query their survey data online and download the survey data for free. Once you think you have a good reckoning on your species you could perhaps cross-reference what you have with the RLS invertebrate data collected available for the relevant area. It may provide further support for the final species identification.
Marshall, B.A. 2016: New species of Venustatrochus Powell, 1951 from New Zealand, and new species of Falsimargarita Powell, 1951 and a new genus of the Calliostomatidae from the southwest Pacific, with comments on some other calliostomatid genera (Mollusca: Gastropoda). Molluscan Research 36: 119-141