👉 Mesoleptidea is a family of freshwater fish that includes several species known for their distinctive coloration, including white, black, and yellow scales. These fish are primarily found in freshwater environments such as lakes, rivers, and streams. Some of the key characteristics of mesoleptides include their white or yellowish scales, which can be seen under a microscope; their long, slender bodies with rounded heads; and the ability to change colors when threatened or in distress.