Cardium (Parvicardium) exiguum var. minimum Bellini, 1903a: 23

Fasulo, Giuseppe, Duraccio, Sergio, Federico, Antonio & Crocetta, Fabio, 2019, The (almost) unknown Italian naturalist Raffaello Bellini (1874 - 1930): biography malacological publications, and status of his recent molluscan taxa, Zootaxa 4668 (3), pp. 343-369 : 355-356

Cardium (Parvicardium) exiguum var. minimum Bellini, 1903a: 23 , 26, fig. 8

( Fig. 4I : left)

Type locality: Fusaro Lake (Bacoli, Tyrrhenian Sea, Italy) .

Original description: “dimensioni piccolissime” [very small sizes].

Remarks: having been instituted on the basis of insignificant morphological characteristics, we rank it infrasubspecific, and thus not available ( ICZN 2012: Art. 10.2, 45 .5, 45.6, glossary). Despite this, it was listed as a variety of Parvicardium exiguum ( Gmelin, 1791) by Hyllelberg (2004). It would be also preoccupied by Cardium minimum Philippi, 1836 . Interestingly, this variety was then skipped by Bellini (1929a) in the general overview of the marine molluscan species living in the Gulf of Naples. This taxon was based on a juvenile shell of P. exiguum , a species that was found again during samplings held in the area in 1975–2018 ( Ferro & Russo 1982; authors’ unpublished data).

Figures

FIGURE 4. A–C. Bittium iadertinum var. coralligena. A. Original figures. B. Possible type material from Capri Island (Naples)—4.9×1.5 mm. C. Original label handwritten by Bellini. MCZR—not numbered. D, E. Murex trunculus var. propeconglobata. D. Fossil(?) shell from Sciacca (Agrigento)—72.4×52.8 mm. E. Original label handwritten by Monterosato. MCZR- M-7623. F, G. Fusus (Pseudofusus) pulchellus var. curta. F. Original figures. G. Shells from Capri Island (Naples) and original label handwritten by Monterosato (up to 16 mm in total height). MCCIC—drawer 8, n. 146. H. Clathromangilia granum var. prausi. Original figures. I. Left. Cardium (Parvicardium) exiguum var. minimum. Original figure. I. Right. Cardium (Parvicardium) exiguum var. paludosum. Original figures.