Cahaba Shiner (Notropis cahabae)

Description: 

The Cahaba Shiner is only found in two rivers, both in central Alabama, the Cahaba River and the Locust Fork. This federally endangered species resides in backwaters adjacent to shoals and riffles on the mainstem of these rivers, only occasionally entering the lower reaches of tributaries. This species is found in similar habitats as the common Mimic Shiner (Notropis volucellus), and they are very difficult to tell apart. The Cahaba Shiner has a straight stripe along its side near the caudal fin base and smoky gray scales on the upper side of the tail region, whereas the Mimic Shiner has a stripe that expands on the lower edge near the caudal fin base and scales with straw-colored centers on the tail region.