1. www.gastropods.com/5/Shell_805.shtml

    Cassis (Cassis) flammea (Linnaeus, C., 1758) Flame/Princess Helmet Shell size 70 - 155 mm E Florida, USA - Venezuela; Caribbean; Bermuda; Lesser Antilles

  2. www.seashells.net.au/Lists/CASSIDAE.html

    CASSIDAE, CASSIS, Cassidae, HELMETS, HELMET SHELLS, BONNETS, BONNET SHELLS, Cassis rufa, Cassis pricelist

  3. www.gastropods.com/Taxon_pages/Family_CASSIDAE.shtml

    CASSIDAE Swainson, W.A., 1832 ThumbNails: Subfamily : CASSIDAE CASSINAE ThumbNails: Cassis (Cassis) Scopoli, 1777 Type species : Cassis (Cassis) cornuta ...