Spirifer urii

Fleming, J. (1828). A history of British animals, exhibiting the descriptive characters and systematical arrangement of the genera and species of quadrupeds, birds, reptiles, fishes, Mollusca, and Radiata of the United Kingdom; including the indigenous, extirpated, and extinct kinds, together with periodical and occasional visitants. <em>Edinburgh, Bell & Bradfute / London, James Duncan.</em> Pp. i-xxii, 1-565. corrigenda.