Early British Dredging: British Conchology
During his life, Jeffreys published around two hundred papers but his most significant piece of work was British Conchology. This series was issued in five volumes between 1862 and 1869, and is illustrated with 132 plates.
It is an important work as it gives descriptions of each species with accounts of their biology and their distribution both in British waters and elsewhere. It is still a standard source of reference today.