Stone Long Legs

The Stone Long Legs is a species of arachnorb that appears to be or is covered in rock.

=In fanon games=

In Pikmin: The Key of Beginning
The Stone Long Legs is an arachnorb appearing in Pikmin: The Key of Beginning. One serves as the boss of the Cavern of Redemption, where it holds the Impenetrable Distorter, which upgrades the leaders' suits so they have resistance to explosions. One later appears in the Magnetized Ruins, where it acts as a mid-boss and releases a single 20-pellet upon defeat.

A member of the arachnorb family, the Stone Long Legs is a spider-like creature and is the larval stage of the Beady Long Legs. Its shell is gray and appears to be made from a stone-like substance, rendering it impervious to anything but bomb rocks, necessitating the use of Orange Pikmin against it.

Wobbley's version
The Rocky Long Legs is an arachnorb that survives exclusively on a diet of mossy stones. The creature extrudes excess stone from its skin which coats the creature and forms a hard stone shell, providing camouflage and defense from predators. Only Rock Pikmin are capable of harming and defeating a Rocky Long Legs.