The occurrence of invertebrate animal-remains in the Somersetshire Coal-field has not, I believe, been very frequently noticed. With the view of drawing attention to the subject, I send a brief notice of a few remains which I had the pleasure of collecting during a visit with Mr. J. Prestwich to this district, hoping that the local geologists, or members of the Natural History Societies, may be induced to record the observations they have made, or further prosecute enquiries into the occurrence of the animal-remains, either vertebrate or invertebrate, which may be associated with the rich and interesting flora of this Coal-field. Casts of bivalve mollusca (Anthracoptera?) were detected in the coal-shale at Twerton, near Bath, but I was not fortunate in finding any similar shales at the other coal-pits visited. Remains of Entomostraca were, however, tolerably abundant at one or two localities, and I have little doubt would yield a rich harvest to any local investigator.