Ethaliella Pilsbry 1905

Genus Ethaliella Pilsbry, 1905 Ethaliella Pilsbry, 1905: 115. Type species Ethalia floccata G.B. Sowerby III, 1903 (original designation), Recent, Japan. Diagnosis Shell small (diameter <10 mm), lenticular to trochoid-turbiniform, umbilicate; smooth or with fine, close-set spiral cords; axial sculpture weak; umbilical rim thickened, often radially plicate and sometimes with a tongue-like parietal callus lobe; umbilical funicle absent. Operculum corneous, multispiral with outer whorls relatively broad; peripheral fringe narrow, radially striate; spiral microsculpture present. Radula with base-plates of rachidian and lateral teeth thin, broadly expanded laterally and extensively overlapping, anterior edge with vestige of shaft; inner marginal tooth transitional, cusps of marginals 3–8 largest, somewhat palmate; central denticle rounded, not conspicuously larger than others; denticles on outer margin long and pointed. Remarks The observations in the above diagnosis concerning the operculum, radula and external anatomy relate to E. rhodomphala (Souverbie, 1875). That they also apply to the type species remains to be established.