Catalogue of the primary types of marine molluscan taxa described by Tommaso Allery Di Maria, Marquis of Monterosato, deposited in the Museo Civico di Zoologia, Roma Author Appolloni, Massimo Author Smriglio, Carlo Author Amati, Bruno Author Lugliè, Lorenzo Author Nofroni, Italo Author Tringali, Lionello P. Author Mariottini, Paolo Author Oliverio, Marco text Zootaxa 2018 2018-09-14 4477 1 1 138 journal article https://doi.org/10.11646/zootaxa.4477.1.1 5846b72f-37ca-4033-af93-c20fb297add9 1175-5326 1454652 5A6191BD-03BA-4374-B779-B3E73652BC7C crustacea, Ostreola [ Ostrea stentina Payraudeau, 1826 ] ( Figures 36C, D ) 1915: 6 (12), pl. IV, figs 6, 7 [LXV: 1256, 1268A, figs 6, 7]—available name Type material. MCZR –M–5492 —1 sh “ Ostreola crustacea Monts Porto di Palermo da figurare” MCZR –M–30041 — 10 v “ Ostreola crustacea Monts, Palermo ” MCZR –M–30042 —6 sh “ Ostreola crustacea var. opercularis Viareggio ! da figurare” Type locality. Described from Palermo ( Sicily ) and Viareggio ( Italy ). Remarks. The syntype in box 5492 was figured in the original work (1915: pl. IV, fig. 6), whereas the other figure showed a syntype of the lot from Viareggio sent by Del Prete, which Monterosato distinguished as var. “ opercularis ”. Recorded by MolluscaBase (2018) as a synonym of Ostrea stentina Payraudeau, 1826 .