Triplodon Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: pl. 29.
Type species: Triplodon rugosus Wagner, 1827 (original designation) = Triplodon corrugatus

Aplodon Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: pl. 25, figs. 1-2.
(homonym of Rafinesque, 1819 [Gastrop.]; renamed Spixoconcha Pilsbry, 1893)
Type species: Aplodon inerme Wagner, 1827 (monotypy) = Monocondylaea minuana

Tetraplodon Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: pl. 25, figs. 3-4.
Type species: Tetraplodon pectinatus Wagner, 1827 (sub. desig. by Simpson, 1900: 863) = Castalia ambigua

Diplodon Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: pl. 26.
Type species: Diplodon ellipticum Wagner, 1827 (sub. desig. by of Authors, 0) = Diplodon ellipticus

Unio caudatus Wagner, 1827
Wagner, 1827, Test. Fluv. Brasil.: 35, pl. 27, figs. 1-2.

Diplodon furcatum Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: pl. 27, figs. 1-2.

Anodon rotundus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 28, pl. 20, figs. 2-4.
(renamed Unio (Anodontes) spixii d’Orbigny, 1835)
Type(s): SYNTYPE SMF_3809, Brasilien, Staat Sao Paulo.

Anodon trapezeus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 28, pl. 20, fig. 1.
(renamed Unio (Anodontes) spixii d’Orbigny, 1835)
Type(s): HOLOTYPE ZSM_MOLL_20041232, Rio Solimoes, Brazil.

Triplodon rugosus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 35, pl. 29, figs. 1-2.
Type(s): SYNTYPE SMF_3782, Brasilien.

Anodon giganteus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 27, pl. 19, fig. 1. [in part]
(misidentified reference to Anodon giganteus Wagner, 1827)

Anodon anserinus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 29, pl. 21, figs. 1-2.

Tetraplodon pectinatus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 32, pl. 25, fig. 3. [in part]
(reference to Tetraplodon pectinatus Wagner, 1827)

Aplodon inerme Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: pl. 25, figs. 1-2.

Anodon radiatus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 31, pl. 23, fig. 1.
Type(s): SYNTYPE SMF_3840, Staat Minas Gereas, Brasilien.

Anodon ensiformis Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 31, pl. 24, figs. 1-2.
Type(s): LECTOTYPE ZSM_MOLL_20041250, Rivers of Brazil.

Anodon siliquosus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 30, pl. 23, fig. 2.
Type(s): SYNTYPES MNHN_MP_0317, Province de Corrientes, Argentina and Santa Cruz de la Sierra, Bolivia.

Anodon siliquosus var. pygmaeum Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 30, pl. 23, figs. 3-4.
(intro'd as intra-sp. of Anodon siliquosus Wagner, 1827)

Cyclas bahiensis Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: ??.

Diplodon ellypticum Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: pl. 26, figs. 1-2.
(incorrect original spelling of Diplodon ellipticum Wagner, 1827)

Diplodon ellipticum Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 33.
Spix in Wagner, 1827, Test. Fluv. Brasil.: pl. 26, figs. 1-2 [as Diplodon ellypticum].
(homonym of Unio (Aximedia) elliptica Rafinesque, 1820; correct name for Diplodon ellypticum Wagner, 1827; renamed Diplodon (s.s.) wagnerianum Simpson, 1900)

Diplodon rhombeus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 34, pl. 28, figs. 1-2.
Type(s): SYNTYPE SMF_3866, Rio Solimoes, Amazonas Geb. Bras.

Anodon trigonus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 29, pl. 22, fig. 2.
(renamed Unio (Anodontes) chiquitana d’Orbigny, 1835)

Diplodon rotundus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 34, pl. 26, figs. 3-4.

Anodon giganteus Wagner, 1827
Bruguière, 1797, Encycl. Méth. 2: pl. 205, fig. 1a-b [as Anodontites sp.].
Spix in Wagner, 1827, Test. Fluv. Brasil.: 27, pl. 19, figs. 1-2.
Type(s): PARATYPE SMF_3815, Rio Solimoes, b. Ega, Brasilien.

Anodon longinus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 29, pl. 22, fig. 1.

Anodon obtusus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 30, pl. 22, fig. 3.
Valenciennes, 1827, Coq. Mar. Biv.: pl. 48, figs. 3a-b.
Type(s): SYNTYPE SMF_3808, Brasilien.

Anodon obtusus var. lituratum Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 30, pl. 22, fig. 4, var b.
(intro'd as intra-sp. of Anodon obtusus Wagner, 1827)
Type(s): SYNTYPE SMF_3807, Brasilien.

Tetraplodon pectinatus Wagner, 1827
Spix in Wagner, 1827, Test. Fluv. Brasil.: 32, pl. 25, fig. 3-4.
Type(s): SYNTYPE MNHN_MP_0117, Brazil [described from “Habitat in flumine S. Francisci in Provincia Minarum” [= Minas Gerais].

Columba spixii Ihering, 1890
Spix in Wagner, 1827, Test. Fluv. Brasil.: 27, pl. 19, fig. 1 [as ‘Anodon giganteus’]. [in part]
‘Spix’ Küster, 1839, Conchyl. Cab. 9(1): 6, pl. 1, fig. 2 [as ‘Anodonta gigantea’].
Ihering, 1890, Arch. Naturg. 56(1): 135, 142, pl. 9, fig. 4.

Anodon anserinus Spix & Wagner, 1827

Anodon ensiformis Spix & Wagner, 1827

Anodon giganteus Spix & Wagner, 1827
+ Anodon crassus Swainson, 1823
+ Anodon giganteus Wagner, 1827

Anodon longinus Spix & Wagner, 1827

Anodon obtusus Spix & Wagner, 1827

Anodon obtusus var. lituratum Spix & Wagner, 1827

Anodon radiatus Spix & Wagner, 1827

Anodon rotundus Spix & Wagner, 1827
+ Mytilus membranacea Maton, 1811
+ Aplodon inerme Wagner, 1827

Anodon siliquosus Spix & Wagner, 1827

Anodon siliquosus var. pygmaeum Spix & Wagner, 1827

Anodon trapezeus Spix & Wagner, 1827

Anodon trigonus Spix & Wagner, 1827

Diplodon caudatus (Spix & Wagner, 1827)
+ Hyria avicularis Lamarck, 1819
+ Diplodon furcatum Wagner, 1827

Diplodon ellipticum (Spix & Wagner, 1827)

Diplodon rhombeus (Spix & Wagner, 1827)

Diplodon rotundus (Spix & Wagner, 1827)
+ Mya variabilis Maton, 1811

Tetraplodon pectinatum (Spix & Wagner, 1827)
+ Castalia ambigua Lamarck, 1819

Triplodon rugosus (Spix & Wagner, 1827)