| Family | Scientific Name | Author | Year | Common Name |
| Ictaluridae | Noturus sp. | “Pee Dee River Broadtail” Madtom |
Unique Characters: Found only in Lumber and Waccamaw drainages. Caudal fin base with dark blotch. Fins not edged with black. Modally 16 anal rays and 59-60 caudal fin rays. Caudal fin length to height ratio of 1.34.
Similar Species:
“Lake Waccamaw Broadtail” Madtom
Noturus sp.
“Cape Fear Broadtail” Madtom
Noturus sp.
Margined Madtom
Noturus insgnis
“Lake Waccamaw Broadtail” Madtom Noturus sp. Found only in Lake Waccamaw. Caudal fin base with dark blotch. Fins not edged with black. Modally 14 anal rays and 55 caudal fin rays. Caudal fin length to height ratio of 1.11. Broad head.
“Cape Fear Broadtail” Madtom Noturus sp. Found only in Cape Fear drainage. Caudal fin base with dark blotch. Fins not edged with black. Modally 16 anal rays and 60 caudal fin rays. Caudal fin length to height ratio of 1.42
Margined Madtom Noturus insignis. Dorsal, anal, and caudal fins usually edged with black. Anal fin with 18-21 rays. Caudal fin base without dark blotch.