Shell Family of Taiwan
Smaragdinellidae 翡翠螺科contain2 species in Taiwan，show1 - 2
 
Smaragdinellidae 綠珠螺科：In Smaragdinella, shell external, globular, with broad and round aperture. Animal stocky. Head-shield large, rounded posteriorly. Gizzard plates 3. In Phanerophthabmts, shell internal, almost flat, circular, on posterior part of animal. Animal elongated cylindrical. Head-shield small. Dorsum enveloped by parapodia. Mantle-shield large, elongated. Herbivorous.
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omenclator
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 Smaragdinella calyculata 綠珠螺  (Broderip et Sowerby, 1829)  
 Smaragdinella sieboldi 西寶綠珠螺  A. Adams, 1864