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 29178 10.11646/zootaxa.4477.1.1 5846b72f-37ca-4033-af93-c20fb297add9 1175-5326 1454652 5A6191BD-03BA-4374-B779-B3E73652BC7C centrifuga , Pseudomalaxis [ Spirolaxis centrifuga (Monterosato, 1890) ] ( Figures 24O, P ) 1890b: 161 [XXXVIII b: 909]—available name Type material. MCZR–M–30035 —2 sh “Madeira”. Type locality. Described from Madeira. Remarks. Name introduced to distinguish Bifrontia zanclaea Philippi, 1844 sensu McAndrew (1852) , considered as a distinct species. Subsequently figured (1913: 363, 1 unnumb. fig.), see also Smriglio et al. (1990) . Recorded by MolluscaBase (2018) as Spirolaxis centrifuga (Monterosato, 1890) .