SubFamily: CANCELLARIINAE - Genus: Trigonostoma H.M.D. De Blainville, 1825 (syn: Trigona, Arizelostoma, Extractrix, Ovilia, Ventrilia, Ovilia - DB: 73 SP, 59 IMG)
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SubFamily: CANCELLARIINAE - Subgenus: Trigonostoma (Extractrix) Korobkov, 1955 † (DB: 2 SP, 2 IMG)
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SubFamily: CANCELLARIINAE - Genus: Unitas K.V.W. Palmer, 1947 (syn: Uxia - DB: 22 SP, 19 IMG)
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SubFamily: CANCELLARIINAE - Genus: Waipaoa J. Marwick, 1931 (DB: 3 SP, 0 IMG)
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