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Xiphophorus alvarezi Rosen, 1960
- Xiphophorus helleri alvarezi Rosen, 1960; (valid as)
- Xiphophorus alvarezi Meyer, Wischnath & Foerster, 1985
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Xiphophorus andersi Meyer & Schartl, 1980
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Xiphophorus birchmanni Espinosa P©rez et al., 1993
- Xiphophorus montezumae birchmanni Lechner & Radda, 1987; (valid as)
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Xiphophorus clemenciae Alvarez, 1959
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Xiphophorus continens Rauchenberger, Kallman & Marizot, 1990
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Xiphophorus cortezi Meyer, Wischnath & Foerster, 1985
- Xiphophorus montezumae cortezi Rosen, 1960; (valid as)
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Xiphophorus couchianus Rosen & Bailey, 1963
- Limia couchiana Girard, 1859; (valid as)
- Poecilia couchii Gìnther, 1866; (unjustified emendation)
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X. c. x
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X. c. xiphophorus
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X. c. xxiphophorusvariatus
- Xiphophorus roseni Meyer & Wischnath, 1981; (hybrid)
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Xiphophorus elegans
- Xiphophorus elegans Paepke & Seegers, 1986; (unavailable, museum name)
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Xiphophorus evelynae Meyer, Wischnath & Foerster, 1985
- Xiphophorus variatus evelynae Rosen, 1960; (valid as)
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Xiphophorus gordoni
- Xiphophorus couchianus gordoni Rosen & Bailey, 1963
- Xiphophorus gordoni Miller & Minckley, 1963; (synonym)
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Xiphophorus hellerii Heckel, 1848
- Xiphophorus helleri authors; (misspelling)
- Xiphophorus helleri Heckel, 1848; (misspelling)
- Xiphophorus heckelii Weyenbergh, 1874; (synonym)
- Xiphophorus guntheri Jordan & Evermann, 1896; (valid as)
- Xiphophorus jalapae Meek, 1902; (synonym)
- Xiphophorus brevis Regan, 1907; (synonym)
- Xiphophorus strigatus Regan, 1907; (synonym)
- Xiphophorus rachovii Regan, 1911; (synonym)
- Xiphophorus hellerii brevis Hubbs & Gordon, 1943; (synonym)
- Xiphophorus helleri guntheri Rosen & Bailey, 1963; (misspelling)
- Xiphophorus helleri strigatus Rosen & Bailey, 1963; (misspelling)
- Xiphophorus helleri strigatus Rosen & Bailey, 1963; (synonym)
- Xiphophorus hellerii guntheri Rosen & Bailey, 1963; (synonym)
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Xiphophorus maculatus Rosen & Bailey, 1963
- Platypoecilus maculatus Gìnther, 1866; (valid as)
- Poecilia maculata Regan, 1906; (valid as)
- Platypoecilus nigra Brind, 1914; (synonym)
- Platypoecilus pulchra Brind, 1914; (synonym)
- Platypoecilus rubra Brind, 1914; (synonym)
- Platypoecilus maculatus aurata Stoye, 1935; (synonym)
- Platypoecilus maculatus sanguinea Stoye, 1935; (synonym)
- Platypoecilus maculatus var. cyanellus Meinken, 1935; (synonym)
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Xiphophorus malinche Rauchenberger, Kallman & Marizot, 1990
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?Xiphophorus marmoratus Obregon-Barboza & Contreras-Balderas, 1988
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Xiphophorus meyeri Schartl & Schræder, 1988
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Xiphophorus milleri Rosen, 1960
- Xiphophorus variatus milleri Rosen, 1960
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?Xiphophorus minor Weyenbergh, 1877
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Xiphophorus montezumae Jordan & Snyder, 1899
- Xiphophorus pseudomontezumae Ahl, 1938; (vs)
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Xiphophorus multilineatus Rauchenberger, Kallman & Morizot, 1990
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Xiphophorus nezahualcoyotl Rauchenberger, Kallman & Marizot, 1990
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Xiphophorus nigrensis Meyer, Wischnath & Foerster, 1985
- Xiphophorus pygmaeus nigrensis Rosen, 1960; (valid as)
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?Xiphophorus obscurus Weyenbergh, 1877
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Xiphophorus pygmaeus Hubbs & Gordon, 1943
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Xiphophorus signum Rosen, 1979
- Xiphophorus helleri signum Rosen & Kallman, 1969; (valid as)
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Xiphophorus variatus Rosen & Bailey, 1963
- Platypoecilus variatus Meek, 1904; (valid as)
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X. v. x
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X. v. xiphophorus
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X. v. xxiphophoruscouchianus
- Xiphophorus roseni Meyer & Wischnath, 1981; (hybrid)
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X. v. xxiphophorusxiphidium
- Xiphophorus kosszanderi Meyer & Wischnath, 1981; (hybrid)
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Xiphophorus xiphidium
- Platypoecilus xiphidium Gordon, 1932; (valid as)
- Xiphophorus variatus xiphidium Rosen, 1960; (valid as)
- Xiphophorus variatus xiphidium Rosen & Bailey, 1963; (valid as)
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X. x. x
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X. x. xiphophorus
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X. x. xxiphophorusvariatus
- Xiphophorus kosszanderi Meyer & Wischnath, 1981; (hybrid)