This is the final volume of Land Snails on the Solomon Islands, revising the Trochomorphidae and all the other, smaller families of land shells not yet treated (Helicinidae, Cyclophoridae, Diplommatinidae, Pupinidae, Assimineidae, Truncatellidae, Ellobiidae, Veronicellidae, Succineidae, Partulidae, Achatinellidae, Vertiginidae, Placostylidae, Subulinidae, Streptaxidae, Rhytididae, Caropodae, Endodontidae, Euconulidae, Helicarionidae, Ariophantidae, and Camaenidae).