Añorian

The sea peoples from the depths of the Course Sea that populate the city of Añora, the Underwater City and Raèbor. The Triton and Tortles evolved on the Raèbori Archipelago and the merfolk and locathah evolved under The Añori Reef. The two groups quickly became intermixed however and are frequently grouped together. 

For D&D gameplay purposes this includes Triton, Tortle, and Locathah. However, it also includes merfolk.