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Monognathus ahlstromi Raju, 1974
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Monognathus berteli Nielsen & Hartel, 1996
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Monognathus bertini Bertelsen & Nielsen, 1987
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Monognathus boehlkei Bertelsen & Nielsen, 1987
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Monognathus bruuni Bertin, 1936
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Monognathus herringi Bertelsen & Nielsen, 1987
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Monognathus isaacsi Raju, 1974
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Monognathus jesperseni Bertin, 1936
- Phasmatostoma jesperseni Myers, 1940; (valid as)
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Monognathus jesse Raju, 1974
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Monognathus nigeli Bertelsen & Nielsen, 1987
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Monognathus ozawai Bertelsen & Nielsen, 1987
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Monognathus rajui Bertelsen & Nielsen, 1987
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Monognathus rosenblatti Bertelsen & Nielsen, 1987
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Monognathus smithi Bertelsen & Nielsen, 1987
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Monognathus taningi Bertin, 1936