Note 277 — Chapter XX · THE GEOLOGY.

I had intended to have accompanied this description with a group of some of the best fossils from this pit, including the fruit, fish-spines, and palates, and the large Pleurotoma attenuata. It was, in fact, commenced by the artist. But the specimens were obliged to be so greatly reduced, that the drawing gave no complete idea of their form and beauty, and would only have confused the reader. I have, therefore, contented myself with figuring at p. 249, in its matrix of clay, the rare Natica cepacea (?), which has passed into Mr. Edwards’ fine collection, and who has kindly allowed me the use of it, with the characteristic Cassidaria nodosa, and a lovely Calyptræa trochiformis, found, as mentioned, inside a Cardita. At p. 244, the specimens given from the Shepherd’s Gutter Beds are Cerithium trilinum (Edw. MS.), Voluta uniplicata, and, in the centre, a shell, showing oblique folds on the columella, which Mr. Edwards thinks may be identical with Fusus incertus of Deshayes.