Watchett, Somersetshire. Ink-bags of Sepiadæ, &c.; splendid Ammonites; Lias.
Whitby, Yorkshire. Ammonites, Belemnites, &c. in abundance; Nautili, &c.; Lias.
Yeovil, Somersetshire. Nautili and Ammonites; Inferior Oolite.
[CHAPTER XIII.]
FOSSIL ARTICULATA; COMPRISING THE ANNELIDES, CIRRIPEDES, CRUSTACEANS, AND INSECTS.
The division of the Animal Kingdom termed Articulata, embraces, as the name implies, those animals which have a jointed body, generally possessing an external-jointed skeleton, composed of segments more or less annular and distinct. It comprehends six classes; namely—
| 1. | [Annelata], or Annelida; i. e. formed of rings; comprising the Red-blooded Worms. |
| 2. | Myriapoda; as the Centipede. |
| 3. | [Cirripedia]; i. e. having curled-feet; as the Balanus and Lepas (Barnacle). |
| 4. | [Crustacea]; as the Crab, Lobster, and Water Flea. |
| 5. | [Arachnida]; Mites, Scorpions, and Spiders. |
| 6. | [Insecta], or Insects. |
Of the first, third, fourth, and sixth of these classes, remains occur in the British strata, some being referable to existing, but the greater part to extinct species and genera. I propose to describe a few illustrative examples of the fossils belonging to each Class.