Idryll (Sanctuary)

From Scratchpad

The Idryll are a race of water-based mammals. Idryll's are large bipeds that appeared to have evolved from water-dwelling mammals. Most of the evidence of their water borne ancestry had been bred out so that, for example, fins and flukes were replaced with arms and legs. They did, however, still breathe through a blow hole on the top of their heads.