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?Leptostomias analis Regan & Trewavas, 1930
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?Leptostomias bermudensis Beebe, 1932
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Leptostomias bilobatus Gibbs & Barnett, 1990
- Melanostomias bilobatus Koefoed, 1956; (valid as)
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Leptostomias gladiator Morrow, 1973
- Nematostomias gladiator Zugmayer, 1911; (valid as)
- Melanostomias problematicus Parr, 1927; (synonym)
- Leptostomias ramosus Regan & Trewavas, 1930; (synonym)
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Leptostomias gracilis Regan & Trewavas, 1930
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Leptostomias haplocaulus Regan & Trewavas, 1930
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Leptostomias leptobolus Regan & Trewavas, 1930
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Leptostomias longibarba Regan & Trewavas, 1930
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Leptostomias macronema Gilbert, 1905
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Leptostomias macropogon Norman, 1930
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Leptostomias multifilis Imai, 1941
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Leptostomias robustus Imai, 1941