144° 



concavus — concentncus 



concavus Nautilas, J. De C. Sowerb)', Tr. Geol. Soc. London [2] V. 1840, expl. pl. 40. 



concava Xeritina, J. De C. Sowerby, Min. Conch. IV. 1823, 118. 



concava Xucula, H. G. Bronn, Ergeb. nat. Reisen, II. 1831, 618. 



concava Nummulites, Defrance, Dict. Sci. Nat. XXXV. 1825, 225. 



concava Orbitolites, Lamarck, Syst. Anim. iSoi, 376. 



concava Orbitolites (Lam.), Defrance, Dict. Sci. Nat. XXXVI. 1825, 295. — Orbulites. 



concava Orbulites, Lamarck, An. s. vert. II. 1816, 197. 



concavum Pecten, G. Perry, Conchology, Ap. 181 1, pl. =,3- 



concavus Pecten, F. M'Coy in Griffith, Syn. Carb. Lst. foss. Ireland, 1844, 90. 



concavum Platyphyllum, T. W. Harris, Ency. Amer. VIII. 1831, 42 ; Treat. Ins. N.. 



England, 1842, 128. 

 concava Pleurotomaria, G. P. DeshayeSr Descr. Coq. foss. Paris, II. 1832, 246. 

 concava Pleurotomaria, G. v. Muenster, Beitr. zur Petref. (4) 1841, 112. 

 concavus Potamides, J. Sowerby, Min. Conch. IV. 1822, 50. 



concavus Potamis(Sow.), T. Brown, 111. Foss. Conch. G.B. I. [1843] (16), 68. — Potamides» 

 concava Quinqueloculina, A. E. Reuss, Denkschr. k. Ak. Wiss. (Wien) I. 1850 [1849], 

 concava Scaeva, T. Say, J. Acad. Nat. Sci. Philad. III. June 1823, 89. [386. 



concavus Sigaretus, Lamarck, An. s. vert. VI (2) 1822, 208. 



concava Skenea (Sow.), J. Fleming, Hist. Brit. Anim. 1828, 314. — Vermicularia. 

 concavus Syrphus (Say), C. R. W. Wiedemann, Aussereurop. Zweifl. Insekt. II. 1830^ 

 concava Terebratula, Lamarck, An. s. vert. VI (i) 18 19, 251. [130- — Scaeva. 



concavus Terebratulites, E. F. Schlotheim, Tasch. Min. 1813, 113. 

 concavus Trochus, J. Sowerby, Min. Conch. II. 181 7, 180. 

 concavus Trochus, J. Sowerby, Min. Conch. III. 1821, 127. 



concava Turbinolia, Ratinesque & Clifford, Ann. gen. Sc. Phys. (Bruxelles) V. Aug. 

 concava Turritella, T. Say, J. Acad. Nat. Sci. Philad. V. Feb. 1826, 207. [1820, 235. 

 concava Turritella, J. De C. Sowerby, Min. Conch. VI. 1827, 126. 

 concava Vermetus(J. Sow.), J. De C. Sowerby, Min. Conch., Alph. Index, 1840, 11. — 

 concava Vermicularia, J. Sowerby, Min. Conch. I. 1814, 125. [Vermicularia. 



concava Vermilia, T. Brown, 111. Foss. Conch. G. B. I. [1845-9], 241. 

 concelata Pholadomya, J. L. R. Agassiz, Etudes crit. Moli. foss. (2) 1842, 129. 

 concentralis Haematopota, F. Walker, List Dipt. CoU. B. M. (i) 1848, 207. 

 concentrice-costellata Modiola, C. F. Roemer, Texas, 1849, 403- 

 concentrice-punctatus Pecten, A. E. Reuss, Verst. boehm. Kreidef. II. 1846, 28. 

 concentricostata Pleurotoma, L. Reeve, Conch. Icon. — Pleurotoma, no. 279, Dec. 1845^ 

 concentrico-striatus Avicula (M'Coy), A. d'Orbigny, Prodr. Paleont. I. 1849 [Jan. 1850], 



136. — Pecten. 

 concentrico-striatus Pecten, F. M'Coy in Griffith, Syn. Carb. Lst. foss. Ireland, 1844, 9^- 

 concentrica Achatina, L. Reeve, Conch. Icon. V. — Achatina, no. 106, June 1849. 

 concentrica Acmaea, A. E. Reuss, Verst. boehm. Kreidef. II. 1846, iio. 

 concentrica Actinia, A. Risso, H. N. Europe, V. 1826, 2S6. 



concentricus Ancylus, A. d'Orbigny, Syn. MoU. Am. merid. in Magasin de Zool. V. 

 concentrica Arca, G. v. Muenster, Beitr. zur Petref. (3) 1840, 54. ['835, 24. 



concentrica Arca, G. v. Muenster, Beitr. zur Petref. (4) 1841, 82. 

 concentrica Arcopagia (Reuss), A. d'Orbigny, Pal. Franc.,Cret. III (Lam.) 1845, 410. 



— Tellina. [Venus, Born, 1778. 



concentrica Artemis (Gm.), T. A. Conrad, Amer. Marine Conch. (4) [?i832], 55.— 

 concentrica ^Arthemis (Lam.), G. P. Deshayes, Traite elem. Conch., Atlas, 1850, 13, 



pl. 20. — Cytherea. 

 concentrica Astarte, T. A. Conrad, J. Acad. Nat. Sci. Philad. VII./^j/ Sept. 1834, 133. 

 concentrica Astarte, G. A. Goldfuss, Petref. German. II (6) 1837, 195. 

 concentrica Astrea, Defrance, Dict. Sci. Nat. XLII. 1826, 386. 

 concentrica Astrea, J. W. Vancleve, P. Amer. Assoc. 1848 (1849), 22 [n. «.]. 

 concentrica Athyris (Buch), P'. M'Coy in Griftith, Syn. Carb. Lst. foss. Ireland, 1844, 



147. — Terebratula. [17. — Tcrehra.tu\a. [non comJ>.}. 



concentrica Atrypa (Schloth.), F. M'Coy in Griffith, Not. foss. Mtn. Lst. Ireland, 1842, 

 concentrica Aucella (Fisch.), A. Keyserling, Wiss. Beob. Petschora, 1846, 300. — 



Inoceramus, Park. 



