👉 The echinothuriids are a family of small, soft-bodied freshwater fish that are found in several species across Asia and Europe, including Japan and Korea. They have a wide range of body shapes, from very small to large, with some reaching up to 4 inches long. Echinothuriidae is characterized by their distinctive coloration, which ranges from light yellowish-brown to dark brown or black in the adult male and female.
