FIGURE 6. A, B. Trochocochlea retusa Monterosato, 1888 in 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

FIGURE 6. A, B. Trochocochlea retusa Monterosato, 1888, Porto Maurizio (Italy) (ex Sulliotti coll.) H. 18.8 mm, with original label (MCZR–M–11122); C, D. Gibbula rotella Monterosato, 1888, Malta, (ex Caruana coll.), H. 5.5 mm, with original label (MCZR–M–11303); E, F. Trochus smaragdinus Monterosato, 1880, Sfax (Tunisia), H. 7.5 mm, with original label (MCZR–M–11700); G, H. Gibbula subcincta Monterosato, 1888, coasts of Africa, H. 12.5 mm, with original label (MCZR–M–11358).