CLEMAM P1178
Kristian Fauchald's Polychaeta DB
Date of publication is sometimes questioned, but a review was published by Férussac in the December 1826 issue of
Bulletin des sciences naturelles et de géologie, vol. 9, p. 363, proving that the frontispiece date is correct. The hint for 1827 may come from a review by the Académie des Sciences, issued March 1827 and bound with the book.