Rissoa seminulum, , Rissoa

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 : 41

seminulum, Rissoa [ Barleeia seminulum (Monterosato, 1877) ] ( Figures 16E–G )

1877a: 35, pl. III, fig. 8 [XV: 305, 322, fig. 8]—available name

Type material. MCZR –M–22234 —34 sh “ Rissoa seminulum Monterosato Sidi—Ferruch ” (Joly’s handwriting).// 1 sh “ Alger (Joly)” Label on the bottom “R? seminulum Monterosato n. sp. Alger (Joly)!”

Type locality. Described from Sidi-Feruch ( Algeria).

Remarks. Very variable, we figure two shells at the extremes of the variation range. Recorded by MolluscaBase (2018) as Barleeia seminulum (Monterosato, 1877) .

Figures

FIGURE 16. A, B. Rissoa puella Monterosato, 1891, fossil of S. Flavia (Sicily), H. 3.2 mm, with original label (MCZR–M– 21155); C, D. Rissoa sculptilis Monterosato, 1877, Algiers (Algeria), H. 2.25 mm (ex Joly coll.), with original label (MCZR– M–22162); E–G. Rissoa seminulum Monterosato, 1877, Algiers (Algeria), H. 2.1 mm and H. 2 mm (ex Joly coll.), with original labels (MCZR–M–22234); H, I. Cingula simplicula Monterosato, 1890, Palermo (Sicily), H. 1.55 mm, with original label (MCZR–M–30018); J, K. Alcidia spinosa Monterosato, 1890, fossil of Milazzo (Sicily), H. 2.15 mm (probable ex Seguenza G. coll.,) with original labels (MCZR–M–30019); L, M. Alvania subareolata Monterosato, 1869, Trapani (Sicily), H. 2.2 mm (ex Brugnone coll.), with original label (MCZR–M–22171); N, O. Setia turriculata Monterosato, 1884, Arenella (Sicily), H. 2 mm, with original label (MCZR–M–30020); P, Q. Aporrhais conemenosi Monterosato, 1890, Prèveza (Greece), H. 29.3 mm, with original label (MCZR–M–8554).