In Novaya Zemlya and the Taimyr peninsula, it projects within the Arctic Circle as far as 77° 6' and 77° 40' N.
Both projects were prohibited by the emperor on the intervention of the legate.
A ventral vessel occurs on the anterior side of the metasome and forms a loop extending down the entire length of the stalk, while a " heart " projects into the cavity of the pericardium, probably connected on the ventral side of the notochord with the ventral vessel, and on its dorsal side with the dorsal vessel.
The mouth, with its jaws, forms a conical outgrowth which projects backwards, so that its apex lies beneath the prothorax.
Southward the coast becomes low, but northward it is steep and very fine, where the great spur of Flamborough Head projects eastward.