Odostomia sigmoidea, , Odostomia

Appolloni, Massimo, Smriglio, Carlo, Amati, Bruno, Lugliè, Lorenzo, Nofroni, Italo, Tringali, Lionello P., Mariottini, Paolo & Oliverio, Marco, 2018, 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, Zootaxa 4477 (1), pp. 1-138 : 70

sigmoidea, Odostomia [ Strioturbonilla sigmoidea (Monterosato, 1880) ] ( Figures 28C, D )

1880c: 71 [XXVII: 555]—available name

Type material. MCZR –M–23717 —1 sh decollated + 1 sh “ O. (Pyrgulina) sigmoidea Monts n. sp. inedita Alger ( Joly )”.

Type locality. Described from Algiers ( Algeria), Bay of Tangier ( Morocco).

Remarks. Recorded by MolluscaBase (2018) as Strioturbonilla sigmoidea (Monterosato, 1880) .

spectabilis, Pyrgostelis [ Pyrgiscus spectabilis (Monterosato, 1884) ] taxon inquirendum

1884h: 90 [XXXI: 746]—available name

Type material. Not found

Type locality. Described from Prèveza ( Greece).

Remarks. Recorded by MolluscaBase (2018) as a synonym of Pyrgiscus rufus ( Philippi, 1836) . However, Monterosato compared it with P. rufus for the coloration, but highlighted the diagnostic subsutural band, the less acute outline, the convex whorls, and the polished and transparent shell. We prefer to provisionally regard it as a nomen dubium [new status] since it may prove a distinct species, recalling Pyrgiscus abrardi (Fischer–Piette & Niclès, 1946).

Figures

FIGURE 28. A, B. Auriculina scandens Monterosato, 1884 ex Brugnone ms., Trapani (Sicily), H. 2.4 mm, with original labels (MCZR–M–23814); C, D. Odostomia sigmoidea Monterosato, 1880, Algiers (Algeria), H. 2.7 mm, with original label (MCZR–M–23717); E, F. Turbonilla subulina Monterosato, 1889, Mogador (Morocco), H. 8.1 mm, with original labels (MCZR–M–23851); G, H. Odostomia turriculata Monterosato, 1869, Ognina (Sicily), H. 2.65 mm, with original label (MCZR–M–23645); I, J. Ringicula conformis Monterosato, 1877, Algiers (Algeria), H. 3.3 mm, with original labels (MCZR– M–16280); K, L. Hela inflata Monterosato, 1880, Palermo (Sicily), H. 1.35 mm, with original label (MCZR–M–21845); M, N. Skenea pellucida Monterosato, 1874, paralectotype, Palermo (Sicily) D. 1.5 mm, with original label (MCZR–M–22108); O, P. Adeorbis imperspicuus Monterosato, 1875, Palermo (Sicily), D. 0.9 mm, with original label (MCZR–M–30038).