Bivalvia | ... | Unionidae | Unioninae | Anodontini | Cristariina | Simpsonella gracilis

Lea, 1851. Proc. Zool. Soc. London 18: 198.
Lea, 1851. Ann. and Mag. 8: 495.
Lea, 1860. Jour. Acad. Nat. Sci. 4 [O. 7]: 236 [54], pl. 33, fig. 115.
Type(s): HOLOTYPE USNM_86693, Laguna de Bay, Luzon, Phil. Is.
+ Simpsonella gracilis (Lea, 1850) — Haas, 1969: 384.
= Simpsonella subcrassa (Lea, 1850) — Simpson, 1914: 1074.
= Simpsonella subcrassa (Lea, 1850) — Haas, 1914: 218, pl. 25, fig. 2.
= Dalliella subcrassa (Lea) — Preston, 1912: 294.
= Dalliella subcrassa (Lea, 1850) — Simpson, 1900: 833.
= Margaron (Anodonta) subcrassa (Lea) — Lea, 1870: 81.
= Anodon subcrassa (Lea, 1850) — Sowerby, 1867: pl. 13, sp. 42.
= Anodonta subcrassa Lea — Adams & Adams, 1857: 503.
= Anodonta subcrassa Lea — Hanley, 1856: 387.
= Margaron (Anodonta) subcrassa (Lea) — Lea, 1852: 51.