Ortmann, A.E. 1921. South American Naiades; a contribution to the knowledge of the freshwater mussels of South America. Memoirs of the Carnegie Museum 8: 451-670, pls. 34-48. Available electronically.

Ortmann, 1921. Mem. Carnegie Mus. 8: 528, pl. 38, figs. 1-4; pl. 46, fig. 6.
Type(s): LECTOTYPE CM_61.5865 (by R.I. Johnson, 1977: 236), Rio Jacuhy, Cachoeira, Rio Grande do Sul, Brazil.
‘Fischer’ Ortmann, 1921. Mem. Carnegie Mus. 8: 594.
(misidentified reference to Mycetopus clessini Fischer, 1890)

Ortmann, 1921. Mem. Carnegie Mus. 8: 499, pl. 36, figs. 3-6; pl. 45, fig. 4; pl. 47, fig. 7; text fig. 4e.
Type(s): LECTOTYPE CM_61.9253 (by R.I. Johnson, 1977: 236), creek of Rio Iguassu, Serrinha, Parana, Brazil.

Ortmann, 1921. Mem. Carnegie Mus. 8: 531, pl. 38, figs. 5-7; pl. 46, fig. 7.
Type(s): LECTOTYPE CM_61.9264 (by R.I. Johnson, 1977: 237), Rio Grande, Boqueirao, Bahia, Brazil.

Ortmann, 1921. Mem. Carnegie Mus. 8: 609, pl. 42, figs. 6-7.
Type(s): LECTOTYPE CM_61.5832 (by R.I. Johnson, 1977: 237), headwaters of the Rio Paraguay, Santa Rita, Matto Grosso, Brazil.

Ortmann, 1921. Mem. Carnegie Mus. 8: 478, pl. 34, figs. 1-4; pl. 47, fig. 5; text fig. 4a.
Type(s): LECTOTYPE CM_61.5857 (by R.I. Johnson, 1977: 238), Rio Guaporé, near Rio Sao Simao, Matto Grosso, Brazil.

Ortmann, 1921. Mem. Carnegie Mus. 8: 514, pl. 36, fig. 7; pl. 37, figs. 1-3; pl. 46, fig. 3; text fig. 4i.
Type(s): LECTOTYPE CM_61.5864 (by R.I. Johnson, 1977: 237), Rio Jacuhy, Cachoeira, Rio Grande do Sul, Brazil.

Ortmann, 1921. Mem. Carnegie Mus. 8: 585, pl. 41,fig. 1.
Type(s): HOLOTYPE (ORIG. DESIG.) CM_61.5846, Rio Guaporé, near Rio Sao Simao, Matto Grosso, Brazil.

Ortmann, 1921. Mem. Carnegie Mus. 8: 604, pl. 42, figs. 3-5.
Type(s): LECTOTYPE CM_61.5829 (by R.I. Johnson, 1977: 237), Rio Tapajós, Santarem, Pará, Brazil.

Ortmann, 1921. Mem. Carnegie Mus. 8: 491, pl. 34. figs. 5-7; pl. 35, figs. 1-2; pl. 45, fig. 1; pl. 47, fig. 6; text fig. 4b.
Type(s): LECTOTYPE CM_61.9248 (by R.I. Johnson, 1977: 238), Rio Vaccacahy-Mirim, Santa Maria, Rio Grande do Sul, Brazil.
‘Rafinesque’ of Authors.
Say, 1834. Amer. Conch. 6: [no pagination].
Conrad, 1834. New Fresh-Water Shells: 70.
Ferussac, 1835. Mag. Zool. 5(59-60): 28.
Lea, 1836. Synopsis Fam. Naiades: 59.
Lea, 1852. Synopsis Fam. Naiades: 57.
Conrad, 1853. Proc. Acad. Nat. Sci. 6: 251.
Ortmann, 1921. Mem. Carnegie Mus. 8: 92.
(error for Unio (Aximedia) levigata Rafinesque, 1820)

Ortmann, 1921. Mem. Carnegie Mus. 8: 520, pl. 37, figs. 4-7; pl. 46, fig. 5; pl. 48, fig. 2; text fig. 4k.
Type(s): LECTOTYPE CM_61.9260 (by R.I. Johnson, 1977: 238), Creek near Mogy Mirim, Sao Paulo, Brazil, tributary to Rio Mogy Guassú and Rio Grande, upper Paraná drainage.

Ortmann, 1921. Mem. Carnegie Mus. 8: 583, pl. 40, figs. 4-6.
Type(s): LECTOTYPE CM_61.5850 (by R.I. Johnson, 1977: 238), Rio Tapajós, Santarem, Pará, Brazil.

Ortmann, 1921. Mem. Carnegie Mus. 8: 495, pl. 35, figs. 3-6; pl. 45, fig. 2; text fig. 4c.
Type(s): LECTOTYPE CM_61.9250 (by R.I. Johnson, 1977: 239), Rio Nhundiaquara, Morretes, Paraná, Brazil.

Ortmann, 1921. Mem. Carnegie Mus. 8: 497, pl. 35, figs. 7-8; pl. 36, figs. 1-2; pl. 45, fig. 3; text fig. 4d.
Type(s): LECTOTYPE CM_61.9251 (by R.I. Johnson, 1977: 239), creek Aqua Quente, 8 miles W of Iporanga, Sao Paulo, Brazil.
+ Mycetopus plicatus Clessin, 1882
+ Glabaris nehringi Ihering, 1893
+ Anodon reticulatus Sowerby, 1867
+ Anodonta hertwigii Ihering, 1890
+ Anodonta weddellii Hupé, 1857
+ Anodonta lingulata Hupé, 1857
+ Anodon obtusus var. lituratum Spix in Wagner, 1827
+ Anodonta obtusa var. hohenackeri Ihering, 1890
+ Anodonta latomarginata Lea, 1834
+ Anodonta membranacea d’Orbigny, 1846
+ Anodonta solida Küster, 1853
+ Anodonta uruguayensis Lea, 1860
+ Glabaris bergi Ihering, 1893
+ Anodonta sinuosa Clessin, 1873
+ Anodonta serpentina Clessin, 1876
+ Anodon crassus Swainson, 1823
+ Anodonta wymanii Lea, 1860
+ Anodonta pazii Lea, 1866
+ Glabaris latomarginatus var. felix Pilsbry, 1896
+ Anodonta troperziali, var. exotica Corsi, 1900
+ Anodon tenebrosa Sowerby, 1867
+ Anodonta tenebricosta Corsi, 1900
+ Anodonta bahiensis Clessin, 1873
+ Anodon rotundus Spix in Wagner, 1827
+ Anodon moretonianus Sowerby, 1867
+ Anodon georginae Gray in Griffith & Pidgeon, 1833
+ Castalia ambigua Sowerby, 1869
+ Castalia quadrilatera Ihering, 1893
+ Castalia ambigua Ihering, 1890
+ Unio nocturnus Lea, 1860
+ Unio paraguayanus Martens, 1895
+ Unio faba d’Orbigny, 1835
+ Unio rhuacoica d’Orbigny, 1835
+ Unio aethiops Lea, 1860
+ Unio parcus Lea, 1866
+ Diplodon hidalgoi Haas, 1916
+ Diplodon fortis Marshall, 1917
+ Unio gratus Ihering, 1893
+ Diplodon ellipticum Spix in Wagner, 1827
+ Diplodon (s.s.) wagnerianum Simpson, 1900
+ Diplodon ellipticus santanus Ihering, 1910
+ Diplodon huapensis Bartsch, 1906
+ Unio psammactinus Philippi, 1848
+ Unio multistriatus Lea, 1831
+ Diplodon expansus Ihering, 1910
+ Unio wymanii Lea, 1860
+ Unio delodonta Lamarck, 1819
+ Unio acutirostris Lea, 1866
+ Unio apprimus Lea, 1866
+ Hyria transversa Hupé, 1857
+ Monocondyloea pazii Lea, 1866
+ Mycetopoda bahia Ihering, 1910
+ Anodonta legumen Martens, 1888
+ Mycetopus clessini Ihering, 1893
+ Mycetopoda staudingeri var. aequatorialis Ihering, 1910