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Sicydium adelum Bussing, 1996
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Sicydium albotaeniatum
- Sicydium albotaeniatum Gìnther, 1877; (valid, uncertain)
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Sicydium altum Meek, 1907
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Sicydium antillarum Ogilvie-Grant, 1884
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Sicydium brevifile Ogilvie-Grant, 1884
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?Sicydium buscki Evermann & Clark, 1906
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Sicydium caguitae
- Sicydium caguitae Evermann & Marsh, 1899; (valid, uncertain)
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Sicydium cocoensis Hoese, 1995
- Cotylopus cocoensis Heller & Snodgrass, 1903; (valid as)
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?Sicydium condotense Regan, 1914
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Sicydium crenilabrum Harrison, 1993
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Sicydium fayae Brock, 1942
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Sicydium gymnogaster Ogilvie-Grant, 1884
- Sicya gymnogaster Jordan & Evermann, 1896; (valid as)
- Sicyosus gymnogaster Jordan & Evermann, 1898; (valid as)
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Sicydium hildebrandi Eigenmann, 1918
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Sicydium multipunctatum Regan, 1906
- Cotylopus punctatus Regan, 1905; (2 homonym)
- Sicydium multipunctatum Regan, 1906; (replacement)
- Sicydium multipunctatum; [CoL]
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Sicydium pittieri Regan, 1907
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Sicydium plumieri Valenciennes, 1837
- Gobius plumieri Bloch, 1786; (valid as)
- Gobiosoma thomasi Fowler, 1949; (synonym)
- Sicydium plumieri Bussing, 1996
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Sicydium punctatum Perugia, 1896
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Sicydium salvini Ogilvie-Grant, 1884
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?Sicydium siragus Poey, 1860
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Sicydium vincente
- Sicydium vincente Jordan & Evermann, 1898; (unavailable, no features)
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?Sicydium xanthurus Bleeker, 1853
- Sicydiops xanthurus Bleeker, 1874; (valid as)