triangularis 

 tri-angularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 



triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 



triangulare 

 triangularis 

 triangulare 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 



triangulare 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 



triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 

 triangularis 



triangularis 



triangularis 



6573 



Hydrops, J. 'Yagler, Kat. Syst. Amph. 1830, I70.-Elaps, 1824. 

 Hymenotes, J. O. ',,"estwood, Proc. Zoo1. Soc. London, V (59) June 1838, 130. 

 Iassus, J. C. Fabricius, Syst. Rhyng. 1803, 88.-Cicada, 1794-. 

 Ichthyosarcolites, A. G. Desmarest, Journ. de Physique, LXXXV. July 1817, 

 Isocardia, \V. Bean, 
Iag. Xat. Hist., n. s. III. Feb. 1839, 60. [51. 

 Lebia, L. Buquet, Ann. Soc. Ent. France, III (4) post 
Iar. 1835, 678. 

 Leptaena (Sow.), A. d'Orbigny, Pro dr. Paléont. I. 1849 [Jan. 1850], 15.- 

 Orthis. 

 Linyphia {De G }, C. ..\.. "-a1ckenaer, Tab. Aran. 1805, 70.-Aranea, ? Clerck, 

 Lucanus, Dejean, Ann. Sci. 
at. XX (79) July 1830,273 [no n.]. [1757. 

 Lycus, F. \Y. Hope, ZooI. :\1iscell. (Gray) (I) Feb. 1831, 26. 

 Lygaeus, J. L. C. Gravenhorst, VergI. Cebers. Zooi. Syst. 1807, 35I. 

 
Iactra, G. )Iontagu, Test. Brit. I. 180 3, 99. 

 :\Iactra, Lamarck, An. s. vert. V. 1818, 476. 

 
Iactra, S. \Voodward, GeoI. Xorf. 18 33, 43. 

 :\Iactrina plont.), T. Brown, Ill. Conch. C. B. 1. 1827, pI. xvi, f. 25.-:\Iactra. 

 :\larginulina, A. d'Orbigny, Foram. foss. Yienne, Sept. 1846, 71. 

 :\Ielia (Yo & K.), A. d'Orbigny, Prodr. Pa1éont. I. 1849 [Jan. 18 5 0 ], 55.- 

 :\Iurex, T. Brown, Tr. R. Soc. Edinb. VIII (2) 1818, 462. [Orthoceratites. 

 
Iurex, A. Risso, H. X. Europe, IV. 1826, 196. 

 :\Iytilus, J. De C. Sowerby, Tr. CeoI. Soc. London [2] V. 1840, ex pI. pI. 39. 

 Nautilus, H. D. de Blainville, Dict. Sci. Xat. XXXII. 1824, 184. 

 Kotonecta, F. E. Guérin-)I., Iconographie, 1844, Ins., 354. 

 Obliquaria, C. S. Rafinesque, Ann. gén. Sci. Phys. (Bruxelles) V. Sept. I820, 

 309.-& var. nigrescens. 

 Ophion, J. L. C. Gravenhorst, \
ergI. Uebers. Zoo1. Syst. 1807, 269. 

 Orthis, J. De C. Sowerby in R. I. Murchison, Silurian System, Jan. 1839,640. 

 Orthoceras, J. E. Pórtlock, Rept. GeoJ. Londonderry , Jan. 18 43, 375. 

 Orthoceratites, d' Archiac & de Verneuil, Tr. Ceo1. Soc. London [2] VI. 1842, 

 Ostrea, S. \Yoodward, Geol. Xorf. 18 33, 4 8 . [347. 

 Ostrea, H. G. Caleotti, )Iém. cour. Ac. Roy. Brux. XII. 18 37, 49. 

 Oxyrhina, P. de :\1. Grey Egerton, Proc. Geol. Soc. London, IY. I844, 386. 

 Ozodes, Dejean, Ann. Sci. Xat. XXI (82) Oct. 1830, I79 [n. n.]. 

 Pachynathus, \V. Swainson, X. H. Fishes etc. II. July 1839, 326. 

 Paragus, J. Curtis, Guide Brit. Ins. (7) I83I, 217 [no n.]. 

 Pecten, G. .\. Goldfuss, Petref. German. II (4) 1833, 6I. 

 Perilampus, T. Say, Contrib. :\Iaclurian Lyceum, I (3) Jan. 1829, 78. 

 Phalangium (Herbst), H. Lucas, H. X. Anim. artic. (Anné1. etc.) 18 4 0 ,464.- 

 Pinna, F. V. Hagenow, X. Jahrb. f. :\1in. 1842,561. [Opilio, 1799. 

 Plectambonites, C. H. Pander, Beitr. Geogn. Russ. Reichs, 1830, 9I. 

 Plectana (Koch), C. A. \Valckenaer (Roret's Suite à Buffon), Aptères, II. 

 1837 [I8.p], I 88.-Acrosoma. 

 Plocamium, J. V. F. Lamouroux, Exp. Méth. Polyp. 182I, 91. 

 Porambonites, C. H. Pander, Beitr. Geogn. Russ. Reichs, 1830, 98. 

 Porizon, J. L. C. Gravenhorst, Ichneum. Europ. III. 1829, 78I.-Ophion, 1807. 

 Psalidostomus, H. Burmeister, Handb. Ent. V. 1847, 380. 

 Ptychodus, A. E. Reuss, Geogn. Skizz. Boehmen, II. 1844, 2I8. 

 Purpura, H. D. de Blainville, X. Ann. :\Ius. H. K. (Paris) I [2] post :\Iay 1832, 

 223. 

 Quinqueloculina, A. d'Orbigny, Ann. Sci. 
at. YII (27) :\Iar. 1826, 302 [no n.]. 

 Radiolites, A. d'Orbigny, Ann. Sci. Xat. [2] (Zoo1.) XVII. )lar. 1842, 181. 

 Rhabdites (Desm.), \V. de Haan, :\Ion. Ammon. 1825, I6o.-Ichthyosarcolites. 

 Salpa, Quoy & Gaimard, Ann. Sci. Kat. \
I (21) Sept. 1825, 45. 

 Salpa, Quoy & Gaimard, Voy. U Cranie" (Zoo1.) 1825, 5rI. 

 Saperda, E. F. Germar, Ins. spec. novae, I. 1824, 493. 

 Sarcoconus (Q. & G.), R. P. Lessen (Roret's Suite à Buffon), Acalèphes, 1843, 

 47 8 .-Stephanomia. 

 Scarab us, \Y. H. Benson, J. Asiat. Soc. Bengal, V. 18 3 6 , 354. 



