Taxonomic Information Class GASTROPODA CAENOGASTROPODA Order LITTORINIMORPHA SuperFamily TONNOIDEA Family PERSONIDAE Page/Plate Indonesian Shells I p 75/1 Molluscs of Okinawa p 76/4 Philippine Marine Mollusks Vol. 1, p 107; Pl. 259/5 Encyclopedia of Marine Gastropods p 164/1 Shells of the World - Volume 2 (in Japanese) p 44/18 The Shell Handbook p 110 Hamlyn Guide to Shells of the World p 152 Eyewitness handbooks - Shells p 99 M.B. Pocket Guide to Shells of the World p 80 Compendium of Seashells p 126/1.3 Collector's guide to Seashells of the World p 85/7 Australian Marine Shells Part 1 p 239; Pl. 40/21 Guide to Australian Shells p 30/1 Guide to Shells of Papua New Guinea p 22/1 Shells of the Philippines p 119/2 Shells of New Guinea & Central Pacific p 13/1 Ranellidae & Personidae of the World Pl. 27/1 Sea Shells on the South African Shores p 298 Marine Molluscs of Mauritius p 52/Pl. IX Seashells of South East Asia p 54 Shells of Vietnam p 101; Pl. 32/6, 9 Vita Marina Vol. 42/3, p 80 The Nautilus Vol. 86/2-4, p 45/42 Synonyms Distorsio rugosa Schumacher, H.C.F., 1758 Shells of Vietnam p 101 Distorsio rotunda Perry, G., 1811 Conchology (London) Pl. 10/Distorta 2 Shells of Vietnam p 101 Image Acknowledgments 1 Guido Poppe 2 Guido Poppe 3 George Sangiouloglou 4 Femorale 5 Mike's Seashell Collection