Geldarm

A very simple creature that lives under the earth in desert regions. There is no trick to defeating the Geldarm (ゲルドアーム, Gerudoaamu), but beware as it can emerge out of the ground randomly to hurt Link. A few slashes with your sword will be more than enough to destroy him.

In A Link to the Past Geldarms look and act a lot like Pokeys.

It is interesting to note that their Japanese name is "Gerudarm," implying a connection to the Gerudo.