Bivalvia | ... | Unionoidea | Unionidae | Ambleminae | Pleurobemini | Pleurobema sintoxia

nominal species Obliquaria (Scalenaria) triangularis var. nigrescens Rafinesque, 1820

Obliquaria (Scalenaria) triangularis var. nigrescens Rafinesque, 1820 = Pleurobema sintoxia

Rafinesque, 1820. Ann. Gén. Sci. Phys. 5 (13): 309.
Rafinesque, 1864. [in] Binney & Tryon, reprint: 53.
(intro'd as intra-sp. of Obliquaria (Scalenaria) triangularis Rafinesque, 1820)

Taxonomic Opinions

+ — Vanatta, 1915: 558.

= Obliquaria (Scalenaria) triangularis var. nigrescens — Rafinesque, 1820: 309.