Many of Rumpf's terms were later adopted by Carl Linnaeus. The study of zoology, including conchology, was revolutionized by Linnaeus and his system of binomial nomenclature. Six hundred eighty three of the approximately 4,000 animal species Linnaeus described are now considered to be molluscs, although Linnaeus placed them in several different phyla at the time. The English word "conchology" was coined in the 1770s by the British Sephardi naturalist Emanuel Mendez da Costa, who published "The Elements of Conchology: or, an Introduction to the Knowledge of Shells" in London in 1776.