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Octopus, G. Johnston, Hist. Berwickshire Nat. Club, I (8 =7) [1840], 197 

 Oliva, C. F. Schumacher, Essai Vers test. 18 1 7, 244. 

 Oliva, Defrance, Dict. Sci. Xat. XXXVI. 1825, 42. 

 Oliva, P. L. Duclos, H. N. Coq. (Olive) 1835, pI. 4 [no et j.]. 

 Ophion, J. L. C. Gravenhorst, Ichneum. Europ. III. 1829, 702. 

 Orthoceratites, J. Steininger, Verst. Uebergangsgeb. Eifel, 1831, 42. 

 Orthostylus (-), H. Beck, Index ::\1011. Mus. Ch. Fred. (I) 1837, 49.- 

 Bulla, \Yood. 

 Ostracites, E. F. v. Schlotheim, Die Petref. 1820, 233. 

 Ovula (Rss.), A. d'Orbigny, Prodr. Paléont. II [Nov.] 1850, 192.-Strombus. 

 Pachygaster, Dahl; Dejean, Catal. Coléopt. 1821, 90 [no n.]. 

 Paludina, T. Brown, Ill. Conch. G. B. I. 1827, pI. xli, f. 74 [no et f.]. 

 Paludina, Quoy & Gaimard in d'Urville, Voy. "Astrolabe," Zoo1. III (1834), 

 Paludina Bithinia, J. E. Gray, London l\led. Reposit. XV. 1821,239. [173. 

 Panopaea (Sch1.), A. d'Orbigny, Prodr. Paléont. I. 18 49 [Jan. 1850], 173.- 

 1\1yacites. 

 Parthenia, E. Forbes, 13 Rept. Brit. Assoc. (Cork, 1843) 1844, 188. 

 Pecten, G. B. Sowerby, II., Thes. Conch. I (2) ante 2 Nov. 1842, 51. 

 Pediculus (Denny), F. L. P. Gervais in Wa1ckenaer (Roret's Suite à Buffon), 

 Aptères, III. 1844, 305.-Haematopinus. 

 Pentamerus, S. Kutorga, Verh. Russ.-Kais. min. Ges. St P. 1845-6 (1846), 108. 

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 Petricola, C. F. F. Krauss, Südafrik. 
Ioll. 1848, 2. [1849 (3) 1849, I II. 

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 Pholadomya, G. A. Goldfuss, PetreL German. II (7) 1840, 266. [? Lac. 

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 2I6.-Homomya. 

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 Plagiostoma, C. H. v. Zieten, Pétrif. Wurt. (9) 1833, 67. 

 Planaria, L. A. G. Bose, H. r\. Vers, I. 1802, 257. [1840, 206. 

 Platyceras, T. A. Conrad, [4 A. Rep. N. Y. Geo1. Surv.] Assembl. no. 50, 

 Platycrinites, G. A. Goldfuss, PetreL German. I (3) 1831, 189. 

 Platyostoma, T. A. Conrad, J. Acad. Nat. Sci. Philad. VIII., post Ap. 1842 

 Platysma, Esch.; J. Sturm, Catal. Ins. Samm1. 1826, 18 5. [275. 

 Pleuromya (Schl.), J. L. R. Agassiz, Etudes crit. Moll. foss. (4) 1845, 234.- 

 1\1 yaci tes. 

 Pleurotoma, Lamarck, Ann. Mus. H. N. (Paris) III (16) ? Feb. 1804, 266. 

 Plicatula, Muenster in G. A. Goldfuss, Petref. German. II (5) 1836, 101. 

 Poecilus, J. F. Eschscholtz, Mém. Soc. Imp. Nat. l\Ioscou, VI. 1823, 106. 

 Polysitus, C. Zimmermann, Mon. Carab. (I) 1831, 72. 

 Potamides, J. Sowerby, )'1in. Conch. IV. 1822, 53. [Potamides. 

 Potamis (Sow.), T. Brown, Ill. Foss. Conch. G. B. I. (17, 18) [1843], 69.- 

 Poterioceras, F. M'Coy in Griffith, Not. fossa l\Itn. Lst. Ireland, 1842, 22 

 [no n.]; Syn. Carbo Lst. fossa Ireland, 1844, 10. 

 Praniza, A. Risso, H. N. Europe, V. 1826, 82. 

 Pterinea, G. A. Goldfuss, PetreL German. II (5) 1836, 134. 

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 Pterostichus (Esch.), :Mannerheim, Bull. Soc. Imp. Nat. Moscou, XVI. 1843 

 (2) 1843, 204.-Poecilus. 

 Pupa, J. P. R. Draparnaud, Tab. 
Ioll. France, 1801, 62. 

 Pupa, J. E. Gray, Ann. Phil. XXV. 1825, 4I3.-Balea, 1824. 

 Pyramid ella, Guérin, :\Tagasin de Zoo1. I. 1831, 2. 

 Pyrula, G. B. Sowerby, I., Cat. Shells Tankerville, 1825, App., p. xvi. 



