One of the syntypes of Strombus robustus G.B. Sowerby III, 1875 has been discovered in the collection of NHMUK and is designated as lectotype. The status of this species, allocated to Margistrombus Bandel, 2007, is addressed. Both Strom­bus (Dolomena) marginatus sowerbyorum Visser & Man in ’t Veld, 2005 and Margistrombus boucheti Thach, 2016 are junior subjective synonyms of S. robustus. The lectotype of S. robustus and the holotype of respectively S. (D.) m. sow­erbyorum and M. boucheti is illustrated.

Papyridea clenchi spec. nov. (Cardiidae) is described from Martinique and compared with the related Papyridea lata (Born, 1778), Papyridea soleniformis (Bruguière, 1789) and Papyridea semisulcata (Gray, 1825). Papyridea curvicostata spec. nov. is described from Ecuador and compared with the related Papyridea hiulca (Reeve, 1845), Papyridea crock­eri (A.M. Strong & Hertlein, 1937) and Papyridea aspersa (G.B. Sowerby i, 1833). Taxonomic relations within the four tropical Atlantic and four tropical eastern Pacific species are analyzed. Distributions of the living species are given. Atlantic-Pacific geminate species pairs are discussed; a pre­dominantly one-way migration (from Atlantic to Pacific) through the Isthmus of Panama is hypothesized. The fossil record of Papyridea is reviewed and the taxonomic position of Profulvia is discussed.

Two genera of Clausiliidae, Phaedusinae, are reported from Bhutan. Cylindrophaedusa is represented with two species, viz. Cylindrophaedusa (Montiphaedusa) parvula Gitten­berger & Leda, spec. nov. and C. (M.) tenzini Gittenberger & Sherub, spec. nov. Phaedusa is represented with at least four species, viz. P. (P.) adrianae Gittenberger & Leda, spec. nov., P. (P.) bhutanensis Nordsieck, 1974, P. (P.) chimiae Git­tenberger & Sherub, spec. nov., and P. (P.) sangayae Gitten­berger & Leda, spec. nov.

Strebloceras oliverioi spec. nov. is described on the basis of two specimens collected from a depth of 60-76 m in the southern Red Sea. The new species is characterized by a small size for the genus and by a large trochospiral proto­conch with weak sinusigera.

Patella candei d’Orbigny, 1840 is a taxon reported from the Azores, the Canary Islands, Madeira and the Selva­gens Islands. The taxonomic status of the species has been the subject to several interpretations. Christiaens (1974) introduced the so-called P. candei complex encompassing four subspecies based on differences in shell morphology. Titselaar (1998) elevated two subspecies of the P. candei complex to species rank. Following recent morphometric and genetic research it has been recommended to elevate all four subspecies of the complex to full species rank. However, the nomenclature of these four species remained partly unclear. Here we show that the following names should be used: P. candei (predominantly Selvagens), P. gomesii Drouët, 1858 (Azores), P. tenuis Gmelin, 1791 (Madeira) and P. ordinaria Mabille, 1888 (Canary Islands). A lectotype is selected for P. crenata Gmelin, 1791 (resulting in its synonymy with P. caerulea Linnaeus, 1758) and for P. teneriffae Mabille, 1888 (resulting in its synonymy with P. ulyssiponensis Gmelin, 1791).d for P. crenata Gmelin, 1791 (resulting in its synonymy with P. caerulea Linnaeus, 1758) and for P. teneriffae Mabille, 1888 (resulting in its synonymy with P. ulyssiponensis Gmelin, 1791).