most of these bubble snails were named on the basis of the shell alone, the occurrence of synonyms among the following species is quite possible. Liloa brevis (Quoy & Gaimard, 1833) Distribution : Australia Description : elongate body; parapodial flaps cover only the front of the thin, fragile shell Liloa curta (A. Adams, 1850) Distribution : Western Pacific Description : elongate body; the color can vary from a few dark spots on a translucent body, to almost completely dark. Liloa incisula Yokoyama, 1928 Distribution : Japan Liloa laeta A. A. Gould, 1859 Distribution : Indo Pacific Liloa nipponensis Nomura & Hatai, 1940 Distribution : Japan Liloa porcellana A. A. Gould, 1859 Distribution : Japan Liloa tomaculum H. A. Pilsbry, 1951 Distribution : Hawaiian Islands Liloa translucens A. Adams, 1862 Distribution : Japan Genus Limulatys Iredale, 1936 Limulatys constrictus T. Habe, 1952 Distribution : Indo Pacific Length : 16 mm Limulatys crassilabris (J. Thiele, 1925) Distribution : S.E. Asia, Thailand Length : 8 mm Limulatys fusiformis T. Habe, 1952 Distribution : Japan Limulatys muscarius A. A. Gould, 1859 Distribution : Indo Pacific, Philippines Limulatys okamotoi T. Habe, 1952 Distribution : Indo Pacific Limulatys ooformis T. Habe, 1964 Egg-shaped Bubble Distribution : Indo Pacific, Philippines, Thailand Length : 20 mm Limulatys okamotoi Habe, 1952 Distribution : Philippines Length : 9 mm Limulatys reliquus Iredale, 1936 Distribution : New Zealand Limulatys scobriculatus A. Adams, 1862 Distribution : Japan Limulatys tortuosus A. Adams, 1850 Distribution : Japan Genus Micratys Habe, 1952 Micratys ovum T. Habe, 1952 Distribution : Japan, Philippines Length : 2 mm Genus Mimatys Habe, 1952 Mimatys fukuokaensis T. Habe, 1952 Distribution : Japan, Philippines Length : 2.5 mm Genus Nipponatys Kurida & Habe, 1952 Nipponatys amakusaensis T. Habe & Kikuchi, 1960 Distribution : Japan Nipponatys oshimai T. Habe & Kikuchi, 1960 Nipponatys volvulina A. Adams, 1862 Distribution : Japan Genus Sericohaminoea Habe, 1952 Genus Sphaeratys F. Nordsieck, 1972 (?) Genus Ventomnestia Ventomnestia bizona (A. Adams, 1850) Ventomnestia colorata Iredale, 1936 Ventomnestia villica (Gould, 1859) (may be a synonym of Ventomnestia bizona) Distribution : Guam Length : 5.5 mm Description : a bubble snail with a great variation in color, from white to brown, but always with a characteristic pattern; heavy shell; radula formula : 2.1.2; Genus Weinkauffia A. Adams, 1858 Weinkauffia diaphana A. Aradas & Maggiore, 1839 Distribution : West Africa Description : has similar gizzard plates as Atys multistriatus Weinkauffia