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Unionidae

Margaritiferidae

Hyriidae

Etheriidae

Mycetopodidae

Iridinidae


Species & Genus Richness by
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North America

Central America

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Data last updated
Thu 18 Dec 2025

Publication Lea (1866): summary

Full Citation

Lea, I. 1866. Description of twelve new species of Unionidæ from South America. Proceedings of the Academy of Natural Sciences of Philadelphia 18: 33-35. Available electronically.

Attributed Nominal Species

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Unio acutirostris Lea, 1866 = Diplodon parallelopipedon

Lea, 1866. Proc. Acad. Nat. Sci. 18: 34.
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 270 [30], pl. 35, fig. 84.
Type(s): HOLOTYPE (MONOTYPY) USNM_85930, S. America.

image of type lot

Unio ampullaceus Lea, 1866 = Diplodon uruguayensis

Lea, 1866. Proc. Acad. Nat. Sci. 18: 34.
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 269, pl. 35, fig. 83.
Type(s): HOLOTYPE USNM_85614, S. America.

image of type lot

Unio apprimus Lea, 1866 = Diplodon uruguayensis

Lea, 1866. Proc. Acad. Nat. Sci. 18: 34.
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 263, pl. 33, fig. 78.
Type(s): HOLOTYPE USNM_85167, S. America.

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Unio firmus Lea, 1866 = Diplodon delodontus

Lea, 1866. Proc. Acad. Nat. Sci. 18: 33.
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 267, pl. 34, fig. 82.
Type(s): HOLOTYPE USNM_85113, S. America.

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Monocondyloea lentiformis Lea, 1866 = Monocondylaea corrientesensis

Lea, 1866. Proc. Acad. Nat. Sci. 18: 34 [as ‘Monocondylœa lentiformis’].
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 272, pl. 36, fig. 86 [as ‘Monocondylœa’].
Type(s): HOLOTYPE USNM_86335, South America.

There are 12 available nominal species attributed to this publication (12 total).
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Unio locellus Lea, 1866 = Diplodon variabilis

Lea, 1866. Proc. Acad. Nat. Sci. 18: 34.
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 264, pl. 33, fig. 79.
Type(s): HOLOTYPE USNM_85189, Buenos Ayres, Argentina.

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Unio paraguayensis Lea, 1866 = Diplodon delodontus

Lea, 1866. Proc. Acad. Nat. Sci. 18: 34.
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 271, pl. 35, fig. 85.
Type(s): HOLOTYPE USNM_85068, Paraguay.

image of type lot

Unio parcus Lea, 1866 = Diplodon charruanus

Lea, 1866. Proc. Acad. Nat. Sci. 18: 34.
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 262, pl. 33, fig. 77.
Type(s): HOLOTYPE USNM_85198, S. America.

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Anodonta pazii Lea, 1866 = Anodontites trapezea

Lea, 1866. Proc. Acad. Nat. Sci. 18: 35.
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 274, pl. 36, fig. 87.
Type(s): HOLOTYPE USNM_86703, So. Am.

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Monocondyloea pazii Lea, 1866 = Monocondylaea minuana

Lea, 1866. Proc. Acad. Nat. Sci. 18: 34 [as ‘Monocondylœa pazii’].
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 273, pl. 36, fig. 88 [as ‘Monocondylœa’].
Type(s): HOLOTYPE USNM_86342, South America.

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Unio peculiaris Lea, 1866 = Diplodon wymanii

Lea, 1866. Proc. Acad. Nat. Sci. 18: 33.
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 265, pl. 34, fig. 80.
Type(s): HOLOTYPE USNM_85190, S. America.

image of type lot

Unio rugososulcatus Lea, 1866 = Pachynaias spheniopsis

Lea, 1866. Proc. Acad. Nat. Sci. 18: 33.
specimen image from publicationLea, 1868. Jour. Acad. Nat. Sci. 6 [O. 12]: 266 [26], pl. 34, fig. 81.
Type(s): LECTOTYPE [AS HOLOTYPE] USNM_84392 (by R.I. Johnson, 1974: 127), Central America.
 
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