Southeastern Blue Sucker (Cycleptus meridonalis)

Description: 

This species is restricted to the Pearl, Pascagoula, and Mobile river drainages below the Fall Line. Southeastern Blue Suckers are primarily found in the mainstem of large rivers. In the spring breeding seasons males darken to a deep blue color and their head and body are covered with small white breeding tubercles. Their long and highly curved dorsal fin is adapted for life in swift currents.