De Montfort's figure of this genus appears as if it had been drawn from the nucleus of a belemnite.
The ink-bags of the belemnite also are sometimes preserved, and we see how it could balk a pursuer by darkening the waters.
It is the fossil commonly called the belemnite, or finger-stone, and now known to be a shell.
The very form of the belemnite at once suggests the notion of a dart or lance-head, which has gained for it its scientific name.
Cerau′nite, a belemnite; Cerau′noscope, an apparatus for imitating thunder and lightning in ancient mysteries.
No species of belemnite at present known agreeing with the description; it is supposed to have been taken from a broken specimen.
Here is a piece of belemnite in limestone, and the fracture in the fossil presents the usual glistening planes of cleavage.
They are dark marly bands, in which a belemnite, Actinocamax plenus, is found.
As a genus it holds a place intermediate between the Cuttle-fish and the belemnite.
The wonderful shell-fishes of the Ammonite group, and the cuttle-fishes of the belemnite type, share the same fate.