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Festucalex cinctus Whitley, 1931
- Syngnathus cinctus Ramsay, 1882; (valid as)
- Festucalex cinctus Dawson, 1977
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Festucalex erythraeus Dawson, 1977
- Ichthyocampus erythraeus Gilbert, 1905; (valid as)
- Ichthyocampus townsendi Duncker, 1915; (synonym)
- Ichthyocampus philippinus Fowler, 1938; (synonym)
- Hippichthys amakusensis Tomiyama, 1972; (synonym)
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Festucalex gibbsi Dawson, 1977
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Festucalex prolixus Dawson, 1984
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Festucalex scalaris Dawson, 1977
- Ichthyocampus scalaris Gìnther, 1870; (valid as)
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Festucalex wassi Dawson, 1977