Triton had a brief but eventful career, serving in the North Sea and the Mediterranean.

Triad had a relatively short career, serving in the North Sea and the Mediterranean.

She then served in the North Sea and on the Downs station.

Tigris had a relatively active career, serving in the North Sea and the Mediterranean.

Phoebe then served in the North Sea and the Channel.

Tarpon had a short career, serving in the North Sea.

She served thereafter in the North Sea, blockading Amsterdam.

During the war she served in the North Sea until bombed and wrecked on 2 February 1940.

Clyde then served in the North Sea.

Triumph had a relatively active, yet tragic career, serving in the North Sea and the Mediterranean.