1975-2019 In issues. Missing are two issues [13(9-10) and 29(5-8)]. Vols 11-32 in 8vo format, and from volume 33 onwards in 4to format. A good long run of this important journal which started as Conchiglie and now is called Bollettino Malacologico. Contains a wealth of information on especially Mediterranean marine molluscs. Included are indexes and 7 extra supplements.