Shells with alternating light and dark bands give these highly invasive non-native freshwater mussels their common name. Learn to identify them so you can avoid spreading them to your favorite lake, pond or stream.
This moderately small, brown crayfish has a very localized distribution centered in Big Creek and its tributaries, in the St. Francis River basin. It lacks bright colors, but blackish specks and blotches occur over the top surfaces of the body and pincers.
This powerfully built crayfish is usually a uniform olive or tan, without obvious blotches or spots. Occasional individuals are blue, with yellowish stripes on the abdomen and bright red outlining many body parts. It is found throughout much of the eastern United States.
MDC protects and manages Missouri's fish, forest, and wildlife resources. We also facilitate your participation in resource-management activities, and we provide opportunities for you to use, enjoy and learn about nature. Read more about our mission.