I think their predominant color was a grayish-green, though they had white bellies. They were mostly shiny and slippery, but the ridges of their backs were scaly. Their forms vaguely suggested the anthropoid, while their heads were the heads of fish, with prodigious bulging eyes that never closed. At the sides of their necks were palpitating gills and their long paws were webbed They hopped irregularly, sometimes on hind legs and sometimes on four . . . their croaking, baying voices held all the dark shades of expression which their staring faces lacked.
H.P. Lovecraft~

This is a character work up for a much larger composition I am working on and I wanted to make sure I had the design all settled.