What animal with only four extant species was the name borne by four ships of the Royal Navy
HMS Hyaena Four ships of the Royal Navy have borne the name HMS "Hyaena" (or HMS "Hyæna"), after the Hyena, a family of carnivorous mammals. Two others were planned but either commissioned under another name or cancelled.
HMS Otter (1896) HMS "Otter" was a Vickers three-funnel, 30-knot destroyer ordered by the Royal Navy under the 1895–1896 Naval Estimates. She was the fourth ship to carry this name since it was introduced in 1782 for a fire ship, sold in 1801.