Though the origin of this name is unknown, it has appeared on maps for over a hundred years and its usage has been established internationally.

The northernmost of a small group of rocks lying north of Intercurrence Island, in the Palmer Archipelago.

The southernmost of a group of rocks extending from the southeast end of Intercurrence Island.

The name, given by the UK Antarctic Place-Names Committee (UK-APC) in 1960, is descriptive of this toothlike feature.

Though the origin of this name is unknown, it has appeared on maps for over 100 years and its usage has been established internationally.