The “cutlass”, or “curtelasse”, has a short, thick blade. Its shorter blade made the cutlass useful in close quarters, and so was favored by sailors. It’s found in the arms of Tatnall, 1632 [Guillim2 340].
Elena McKenzie bears: Purpure, two cutlasses in saltire edges to chief and a base rayonny Or.
Basilius Fuchs bears: Per chevron throughout argent and sable, two cutlasses in chevron sable and a phoenix Or rising from flames proper.