Gillanders – Generations of people who have gills on one side and lungs on the other and can breath underwater

Leylanders – People like us

Marino – Underwater house where Gillanders live as well as their families, some of which can’t breath underwater. People living here are also referred to as Marinos.

Breathable Rooms – Rooms in Marino where ordinary air is pumped in and people can breath normally.

Egg  Taxis – These run on cables from a secret cave under the Headland Hotel to Marino

Wishful – Aunti’s Moo’s dinghy

Botolph and Osquirt  Dolphins that are used as water taxis

Aquadaptors – Long wet suit like boots that allows the wearer to breathe underwater