Lea, I. 1868. Description of two new species of Unionidæ from Equador. Proceedings of the Academy of Natural Sciences of Philadelphia 20: 161-162. Available electronically.

Lea, 1868. Proc. Acad. Nat. Sci. 20: 162.
Lea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 324 [84], pl. 53, fig. 137.
Type(s): FIGURED SYNTYPE USNM_25429, Rio Napo, Ecuador.

Lea, 1868. Proc. Acad. Nat. Sci. 20: 161.
Lea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 321, pl. 52, fig. 134.
Type(s): HOLOTYPE (MONOTYPY) USNM_703563, River Napo, Ecuador.