7. A basking shark, or a row of sharks. (Mr. SAMUEL L. MITCHILL, 1828).

8. A balaenopterous whale, or a row of them. (Mr. SAMUEL L. MITCHILL,

1828).

9. An _Ichthyosaurus_, or a saurian allied to it. (Mr. R. BAKEWELL,

1830?).

10. A _Plesiosaurus_, or a saurian allied to it. (Professor BENJAMIN

SILLIMAN, 1830?).