IV.—On Galerites albogalerus, Lamarck, syn. Echinoconus conicus, Breynius

Abstract

Next to Ananchytes ovata, there is probably no fossil Echinoid which is so well known to geologists and so common in collections as Galerites albogalerus, Lam. Described by Lamarck, studied by Forbes, and puzzled over by almost every naturalist who has classified the Echinoidea, this common yet most variable form has received a number of synonyms, and has been made to belong to four genera besides that in which it now rests.