Centrotus, ]. C. Fabricius, Syst. Rhyng. 1803, 23. 

 Ceriopora, C. G. Giebel, Zeitung f. Zoo1. I (3) Jan. 1848, 17. 

 Cerithium, Lamarck, Ann. :i\Ius. H. N. (Paris) III (I6) ? Feb. 1804, 272. 

 Cidaris, L. Agassiz, Cat. Ect. Ech. 1840, 10. 

 Clavulina, A. d'Orbigny in Sagra, Cuba (Foram.) 1839, I I 1. 

 [Clemmys] (Schoepff), J. Wagler, Nat. Syst. Amph. 1830, I37.-Testudo, 

 1792. 

 tricarinata Cleonis, G. Fischer v. W., Entom. Imp. Russ. II., post Nov. 1824, 233. 

 tricarinata Crassatella, F. A. Roemer, Verst. Norddeutsch. Kreidegeb. (2) 18 4 1 , 74. 

 tricarinitus (sic) Cyathocrinites, F. A. Roemer, Verst. Harzgeb. 1843, 8. [1817, 13. 

 tricarinata Cyclostoma, T. Say (ex Lesueur), J. Acad. Nat. Sci. Philad. I. no. I, May 

 tricarinata Cyclostoma (l\1üll.), Lamarck, An. s. vert. VI (2) 1822, I44.- Helix , 1774. 

 tricarinata Cypricardia (Roem.), A. d'Orbigny, Prodr. Paléont. II [Nov.] 1850, 240.- 

 Crass a tella. 

 Delphax, T. Say, J. Acad. Nat. Sci. Philad. IV. Ap. 1825, 337. 

 Delphinula, F. A. Roemer, Verst. Norddeutsch. Kreidegeb. (2) 1841, 81. 

 Eglisia, Adams & Reeve, Zool. "Samarang" (7) Moll., Aug. 18 5 0 , 49. 

 Emarginula, J. De C. Sowerby, Min. Conch. VI. 1826, 34. 

 Emys (Daud.), H. Cloquet, Dict. Sci. Nat. XIV. 1819, 439.-Testudo, Sch. 

 Erodius, ]. Sturm, Catal. Ins. Samml. 1826, 139 [11,. n.]. [1792. 

 Ferussacia, H. G. Bronn, Lethaea Geogn. II (9- ) 1838, 1014. 

 Frondicularia, A. d'Orbigny, l\lém. Soc. géol. France, IV (I) 1840, 21. 

 Heilipus, Boheman in C. J. Schoenherr, Gen. et Sp. Curc. VII (2) 1843, 81. 

 Helix, ]. K. Megerle, Ges. Nat. Fr. Berlin, Verh. I (4) 1824, 220. 

 Locusta, J. F. Stephens, Nom. Brit. Ins., Aug. 1829, 25 [11,. n.]; & Ill. Brit. 

 Ent. (l\Iand. VI.) Ap. 1835, 23. 

 Loligo, J. E. Gray, Cat. Moll. ColI. B. 1\1. (I) 18 49, 73. 

 l\Iarginulina (d'O.), G. P. Deshayes, EllCY. Méth. (Vers) II (2) 1832, 418 

 (Ggg*).-Vaginulina. 

 Melania, W. H. Fitton, Ann. Philos., n. s. VIII. Nov. 1824, 376 [no 11,.]. 

 :\Ielania, J. De C. Sowerby, :\Iin. Conch. VI (90) 1826, 52 [no n.]. 

 Melania, W. Dunker, Mon. Norddeutsch. Weald. 1846, 51. 

 :Melanopsis, J. De C. Sowerby, Tr. Geol. Soc. London [2] IV. 1 8 3 6 , 34 6 .- 

 Monodonta, Lamarck, An. s. vert. VII. 1822, 36. [Melania, 1826. 

 Murchisonia, J. Hall, N. H. New York (Pal. I.) 1847, 178. 

 l\Iurex, Lamarck, Ann. :\1 us. H. N. (Paris) II (9) June 1 80 3, 223. 

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 Nov. 1844, I71.-Buccinum, Br. 1789. 

 Nerita, Lamarck, Ann. l\Ius. H. N. (Paris) V (26) Oct. 180 4, 94. 

 Paludina, Potiez & Michaud, Gal. Moll. Douai, I. Oct. 1838, 256. 

 Paludina, H. E. Anton, Verz. Conch. 1839, 52. 

 Pecten, Defrance, Dict. Sci. Nat. XXXVIII. 1825, 260. 

 Pecten, H. E. Anton, Verz. Conch. 1839, 19. 

 Planorbis, F. W. Hoeninghaus, Jahrb. f. Min. 1831, 170 [no n.]. 

 Pleurotoma, Kiener (ex Val. MS), Coq. vivo (Pleur.) 1839-40, 64 [teste E.R.S.]. 

 Pleurotomaria, A. V. Klipstein, Beitr. geol. östI. Alpen (2, 3) 1845, 171. 

 Pterocera, A. d'Orbigny, Prodr. Paléont. II [Nov.] 1850, 71. 

 Pteronotus, W. Swainson, Treat. Malacol., May 1840, 29 6 . 

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 Pyrula, T. A. Conrad, Foss. Shells Tert. N. Amer. (3); Republished with pIs. 

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 Serpula, G. A. Goldfuss, Petref. German. I (3) 1831, 23 0 . 

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