What is the name of the gladiator that wears a fish-shaped helmet?

The gladiator known for wearing a fish-shaped helmet is indeed the Murmillo. The design of the Murmillo's helmet features a distinctive curved, crest-like feature that resembles the shape of a fish, which is not only a defining characteristic but also a nod to its name, as "murmillo" is derived from the Latin word for fish. This helmet design offered a unique aesthetic that set the Murmillo apart from other types of gladiators in the arena.

Murmillos typically fought against other gladiatorial styles, using a gladius and carrying a large rectangular shield, making their combat style quite distinctive. The choice of their helmet and gear was part of the broader spectacle of gladiatorial games in ancient Rome, contributing to both the visual drama and the unique fighting techniques associated with different gladiatorial types.

While the Hoplomachus, Secutor, and Laqueator each have their own specific helmets and fighting styles, none of these types are associated with the recognizable fish-shaped helmet that characterizes the Murmillo, further solidifying its unique place within the pantheon of gladiatorial combat.