1) Go smaller 
• (n.) Any one of numerous species of marine annelids of the family Polynoidae, and allies, which have two rows of scales, or elytra, along the back. See Illust. under Chaetopoda.
Scale'back` noun (Zoology) Any one of numerous species of marine annelids of the family Polynoidæ , and allies, which have two rows of scales, or elytra, along the back. See Illust. under Chætopoda .