Moxostoma erythrurum - Atlantic slope

Moxostoma erythrurum - Golden Redhorse - male - Oconaluftee River — Moxostoma erythrurum – Golden Redhorse – male – Oconaluftee River – Mississippi River drainage

Moxostoma erythrurum, Golden Redhorse, lips, NCSM 36684. — Moxostoma erythrurum, Golden Redhorse, lips, NCSM 36684 – Atlantic slope

Family	Scientific Name	Author	Year	Common Name
Catostomidae	Moxostoma erythrurum	(Rafinesque)	1818	Golden Redhorse

Moxostoma erythrurum – Atlantic slope

Unique Characters: Circumpeduncle scales modally 12. Lower lip plicate. Lower lip V- or U-shaped. Supratemporal canal not interrupted medially. Lateral-line scales modally 42 (range 39–45). Breast scales not embedded. Along the Atlantic slope range is restricted from Potomac basin in Maryland and Virginia south to Roanoke basin.

Similar Species (along the Atlantic slope):

Carolina Redhorse, Moxostoma carolina

Moxostoma carolina, Carolina Redhorse, - Little River at Capelsie, NC, May 11, 2005. — Moxostoma carolina, Carolina Redhorse, – Little River at Capelsie, NC, May 11, 2005.

Moxostoma carolina, Carolina Redhorse, lips, NCSM 41138.

Carolina Redhorse, Moxostoma carolina. Circumpeduncle scales modally 12. Lower lip plicate. Lower lip V- or U-shaped. Supratemporal canal usually interrupted medially. Lateral-line scales modally 45 (range 43–47). Breast scales modally 100% (50-100%) embedded. Range restricted to middle Cape Fear River and lower Yadkin-Pee Dee basin (Hogue et al. 2026).

Shorthead Redhorse, Moxostoma macrolepidotum

Moxostoma macrolepidotum, Shorthead Redhorse, lips, NCSM 3748.

Shorthead Redhorse, Moxostoma macrolepidotum. Circumpeduncle scales modally 12. Lower lip subplicate with deep transverse grooves (Hogue et al. 2026).

Robust Redhorse, Moxostoma robustum

Moxostoma robustum - Robust Redhorse - male — Moxostoma robustum – Robust Redhorse – male

Moxostoma robustum, Robust Redhorse, lips, NCSM 30516.

Robust Redhorse, Moxostoma robustum. Circumpeduncle scales modally 12. Lower lip plicate. Lower lip not V- or U-shaped, almost completely straight with midposterior fleshy extension. Currently restricted to Yadkin basin (Pee Dee River) downstream from Blewett Falls dam (Hogue et al. 2026).

“Brassy” Jumprock, Moxostoma sp.

Moxostoma sp., "Brassy" Jumprock, lips, NCSM 26929. — Moxostoma sp., “Brassy” Jumprock, lips, NCSM 26929.

Moxostoma sp. "Brassy" Jumprock - Photo Credit: Cody Cromer — Moxostoma sp. “Brassy” Jumprock –
Photo Credit: Cody Cromer

Moxostoma sp. "Brassy" Jumprock - juvenile — Moxostoma sp. “Brassy” Jumprock – juvenile

“Brassy” Jumprock, Moxostoma sp. Circumpeduncle scales modally 16 (range 15-17) (Hogue et al. 2026).

References:

Hogue, G.M., B.H. Tracy, J.A. Raine, and L.C. Hughes. 2026. Carolina Redhorse – a new species of Moxostoma (Cypriniformes: Catostomidae) from North Carolina and South Carolina, USA. Zootaxa 5763 (4):501-528. https://doi.org/10.11646/zootaxa.5763.4.3.