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Lyonsia, A. d'Orbigny, Prodr. Paleont. I. 1849 [Jan. 1850], 335. 



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Melandrya, S. S. Haldeman, Journ, Acad. Nat. Sci. Philad. I (2) Aug. 1848, 



Meloe, W. E. Leach, Tr. Linn. Soc. London, XI (2) 1815, 248. 



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(2) 1848, 568, Table.— Ptilium. 

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Murchisonia, d'Archiac & Verneuil, Bull. Soc. geol. France, XII. 1841, 159 

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Planaria, O. Fabricius, Afhandl. K. Danske Vid. Selsk. II. 1826, 26. 



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Proconia, Le Peletier & Serville, Ency. Meth. X (2) (Ins.) 1828, 611. 



Procrustes, T. v. Charpentier, Horae Ent. 1825, 184. 



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