The Firbhalaosc (fear-vah-lashk) are sea-dwelling Firbolg tasked with naming the creatures and plants that live in the oceans.
Firbhalaosc appear as humanoid tortoises, walking upright with a ponderous and rolling gait. They have leathery, reptilian skin and shells that cover their backs and bellies. Their skin is blue-green or olive. Their back shells are shiner and usually darker than their skin color and their front shells are lighter and have a yellowish cast.
They typically grow between 7 and 8 feet tall and are stocky, weighing up to 600 pounds. Their shell accounts for about one third their weight. Most wear no clothing, though some may wear belts, cloaks,and harnesses for carrying supplies and tools. Firbhalaosc have a beak-like and toothless mouth able to deliver a vicious bite.
Firbhaolasc do not have permanent homes, but instead travel up and down the shorelines, surveying their territory and maintaining positive relations with outposts and cities on their shores. While traveling, they have a combination of temporary shelters ashore (including cooking pots, etc), and storage and living/working space off shore. The sleep in the (relative) safety of the seas, generally about 100 meters or so from the shore; seaweed wraps around their bodies and supports their heads just above the water as they sleep.