About Arcidens confragosus (Say, 1829)
Scientific name: Arcidens confragosus (Say, 1829).
Description: The shell of Arcidens confragosus is pyriform, or pear-shaped. It is heavily sculptured, fairly thin, and can reach up to 15 centimetres (5.9 inches) in length. The shell's outer color ranges from green to dark brown. The nacre (inner shell layer) is white and iridescent.
Distribution: This species is widespread across the central United States. It is found in the Mississippi River drainage basin, and in coastal rivers that drain into the Gulf of Mexico. Its range extends from the Colorado River in Texas, east to the Mobile River System in Alabama.
