Belted Crayfish (Big River Crayfish)
This medium-small, tan crayfish has a distinctive pattern of alternating olive-green and reddish-brown bands on the abdominal segments. Another unique feature is the presence on the carapace of a broad, blackish band that spans the cervical groove (the groove separating head and thorax). A second blackish band is located at the junction of the carapace and abdomen. The pincers are narrow for a stream crayfish but are not especially long.
Similar species: Within the belted crayfish's range, neither the golden crayfish (O. luteus) nor the saddlebacked crayfish (O. medius) has the first of the blackish saddle marks spanning the cervical groove.