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dubia Orthambonites, C. H. Pander, Beitr. Geogn. Russ. Reichs, 1830, 100. 

 dubium Orthoceras, F. v. Hauer, Naturw. Abhandl. (Haidinger) I. 1847, 260. 

 dubius Orthoceratites, Cristofori & Jan, Abrege Foss. Mus. C & J. [1832] [n. n.]. 

 dubius Orthogonius, F. W. Hope, Ann. Mag. N. H. X. Oct. 1842, 92. 

 dubia Oscinis, J. Macquart (Roret's Suite a Buffon), Dipteres, II. 1835, 604. 

 dubia Ostrea, Defrance, Dict. Sci. Nat. XXII. 182 1, 25. 

 dubia Ovis, A. Afzelius, N. Acta Soc. Sci. Upsal. VII. 1815, 217. 

 dubius Oxytekas, Dejean, Catal. Coleopt. 1821, 25 [n. n.]. 

 dubius Pachymerus, P. Rambur, F. Ent. Andal. II (4) Jan. 1839, 152. 

 dubius Pachyodon, T. Brown, Ann. Mag. N. H. XII. Dec. 1843, 392. 

 dubia Pachyta (Fab.), J. Sturm, Catal. Ins. Samml. 1826, 181.— Leptura, 1781. 

 dubius Pagurus (Herbst), A. G. Olivier, Ency. Meth. VIII (2) (Ins.) [1812], 647.— Cancer. 

 dubia Panopoea, H. C. Lea, P. Amer. Phil. Soc. III. 1843, 163 [n. n.] ; Tr. Amer. Phil. 

 Soc, n. s., IX (3) Dec. 1846, 236. 



Papilio, Palisot de B., Ins. Afr. Amer. ( — ) 1813-20, 238. 



Paradoxurus, J. E. Gray, Proc. Comm. Sci. Zool. Soc. London (17) June 1832, 66. 



Paramoecium, Bory de St V., Ency. Meth. (Zooph.) 1827, 601. 



Parus, J. Wilkes, Ency. Londin. XVIII (1277) 182 1, 727. 



Patella, H. Michelin, Mem. Soc. geol. France, III (i) 1838, 99. 



Pecten, L. A. G. Bosc, s. a Deterville ed. Bufifon, MoII. II. 1801, 263. 



Pecten, Defrance in Cuvier & Brongniart, Desc. Geol. Paris, ed. 3, 1822, 384. 



Pecten (L.), H. G. Bronn, Syst. urw. Konch. 1824, 52. — Ostrea, Gm. 1790. 



Peneroplis, A. d'Orbigny in Sagra, Cuba (Foram.) 1839, ^^- 



Penniretepora (Schl.), A. d'Orbigny, Prodr. Paleont. I. 1849 [J^-^- 1850], 169. — 



Pentacrinites, G. A. Goldfuss, Petref. German. I (3) 1831, 176. [Keratophytes. 



Peristera, C. L. Brehm, Isis, 1830, 985 [n. n.]. 



Perla, P. Rambur (Roi-et's Suite a BufFon), Nevropteres, 1842, 453. 



Perothis, H. Rathke, Mem. presentes Ac Imp. Sci. St Petersb. II (i & 2) Mar. 



Phacops, J. Barrande, Not. prel. Silur. 1846, 26. [i833» 170- 



Phalangium, G. Shaw, Nat. Misc. XV. 1804, pl. 608. 



Phaleris (Pall.), F. Eschscholtz, Zool. Atlas, IV. 1831, 4.— Uria. 



Phila, V. v. Mochulski, Kaefer Russl.,/^i-/ May 1850, 14 [n. 7t.]. 



Philopotamus, P. Rambur (Rorefs Suite a Buffon), Nevropteres, 1842, 503. 



Phoca, J. B. Fischer, Syn. Mamm. 1829, 235. 

 dubia melitensis Phoca, H. D. de Blainville, Osteogr., Phoca, 1840, 46. 

 dubia Pholadomya, F. A. Roemer, Verst. Norddeutsch. Kreidegeb. (2) 1841, 75. 



Phthiria, E. F. Germar, Fauna Ins. Europ. (19) 1837, 24. 



Phymesoda (Say), C S. Rafinesque, Ann. gen. Sci. Phys. (Bruxelles) V. Sept. 1820, 



Picus, S. Cabot, jr., Boston Journ. N. H. V (i) 1845, 91« [319- — Cyclas. 



Pimelia, F. Faldermann, N. Mem. Soc. Imp. Nat. Moscou, V. 1837, 8. 



Pisidium (Say), A. A. Gould in J. L. R. Agassiz, Lake Superior, 1850, 245. — 



Pissodes, J. W. Randall, Boston Journ. N. H. II (i) 1838, 24. [Cyclas. 



[Pithecia], F. Cuvier in E. Geofifroy St H. & F. Cuvier, Hist. Nat. Mamm. IV 

 (68) Mar. 1834, Maki a gorge blanc, p. 2. 



Pitonillus (Lam.), H. G. Bronn, Index Pal. 1848, 983. — Helicina. 



Plagiostoma, T. Brown, III. Foss. Conch. G. B. I. [1845-9], ^S^- 



Planaria, de Blainville, Dict. Sci. Nat. XLI. 1826, 218. 



Planorbis, Hartmann, N. Alpina, I. 1821, 254. 



Planulina, A. d'Orbigny, Ann. Sci. Nat. VII (27) Mar. 1826, 280 [n. n.]. 



Plectana, C A. Walckenaer (Rorefs Suite a Buffon), Apteres, II. 1837 [1841], 198. 



Pleurotoma, Cristofori & Jan, Cat. Mus. (Sect. II (i) Conch. foss.) 1832, 9. 



Pleurotoma, Defrance in G. P. Deshayes, Descr. Coq. foss. Paris, II. 1834, 481. 



Pleurotoma, C B. Adams, Proc Boston Soc. N. H. II. 1848 (1845), 4. 



Pleurotomaria, T. Brown, III. Foss. Conch. G. B. I. (19, 20) [1843], 87. 



Ploceus, A. Smith, Rpt. Exp. C Afr. 1836, 50. 



Podops (Pal.), E. F. Germar, Zeitschr. f. d. Entom. I (i) 1839, 64.— Scutellera. 



Poecilia, de Blainville, N. Dict. H. N., ed. 2, XXVII. 1818, 334. 



Pogonias (Gm.), C Illiger, Prod. 181 1, 202. — Bucco, 1788. 



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