Which dangerous kind of Snark makes the Baker vanish?

The dangerous kind of Snark that makes the Baker vanish is a Boojum.

In Lewis Carroll’s 1876 nonsense poem The Hunting of the Snark, the Bellman warns the hunting party that some Snarks are actually highly dangerous Boojums. The Baker remembers his uncle’s warning that anyone who encounters one will “softly and suddenly vanish away.”

The Baker eventually races ahead and announces that he has found a Snark. When the others arrive, he has disappeared without leaving even a button, feather, or mark. The poem’s final explanation confirms that the Snark was a Boojum.

Jabberwock, Jubjub, and Bandersnatch are also Carrollian creatures, but they belong to different parts of his imaginative vocabulary. A Jabberwock appears in “Jabberwocky,” a Jubjub bird appears in The Hunting of the Snark, and a Bandersnatch attacks the Banker. None is the creature responsible for the Baker’s disappearance.