Sea ravens are a family, the Hemitripteridae, of scorpaeniform fish. They are bottom-dwelling fish that feed on small invertebrates, found in the northwest Atlantic and north Pacific Oceans. They are covered in small spines (modified scales).
References
- Froese, Rainer, and Daniel Pauly, eds. (2012). "Hemitripteridae" in FishBase. December 2012 version.