Castalia ambigua ambigua Lamarck, 1819 = Castalia ambigua
+ Castalia quadrilatera d’Orbigny, 1835
+ Castalia acuticosta Hupé, 1857
+ Castalia turgida Hupé, 1857
+ Castalia retusa Hupé, 1857
+ Castalia crosseana Hidalgo, 1865
+ Castalia hanleyana Sowerby, 1869
+ Castalia latiquadrata Sowerby, 1869
+ Tetraplodon baro Ihering, 1910
+ Tetraplodon juruanus Ihering, 1910
+ Chevronais colombiana Olsson & Wurtz, 1951

Castalia ambigua ambigua Lamarck, 1819 = Castalia crosseana

Castalia ambigua inflata d’Orbigny, 1835 = Castalia inflata

Castalia ambigua multisulcata Hupé, 1857 = Castalia multisulcata

Castalia ambigua pectinata (Spix, 1827) = Castalia ambigua

Castalia psammoica (Orbigny, 1835)
+ Castalia ovata Sowerby, 1869

Castalia sulcata nerhingi [sic] (Ihering) = Castalia nehringi

Castalia sulcata orbignyi (Hupé & Deville , 1850) = Castalia orbignyi

Castalia sulcata sulcata Krauss, 1849 = Castaliella sulcata
+ Unio kraussii Lea, 1853
+ Castalia schombergiana Sowerby, 1869
+ Castalia quadrata Sowerby, 1869

Castalia sulcata sulcata Krauss, 1849 = Castaliella quadrata

Castalia sulcata sulcata Krauss, 1849 = Castaliella schombergiana

Castalia undosa martensi (Ihering, 1891) = Castalia martensi

Castalia undosa undosa Martens, 1885 = Castalia undosa

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