Tibitin is a genus of ascidian tunicates in the family Styelidae.
Species within the genus Tibitin include:
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Tibitin halimedae Monniot, 1983
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Tibitin manu Monniot & Monniot, 1987
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Tibitin probatus Monniot C. & Monniot F., 1987
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Tibitin transversalis (Tokioka, 1963)