50 CARBONICOLA, ANTHRACOMYA, AND NAIADITES. 



3. Carbonicola acuta (Sowerby). Plate III, figs. 1 — 12 ; Plate IV, figs. 8 — 17 ; 



Plate V, figs. 1, 3—37, 39 ; Plate VI, figs. 1—43. 



Unio acutus, Sow. Min. Conch., vol. i, p. 84, pi. xxxiii, figs. 5, 7, 1829. 



— — Defrance. Diet. Sci. Nat., vol. xxxiii, p. 294. 



— Hoeninghaus. Verzeichniss Petrefact. Sammlung, 1829, p. 17. 



— — Neues Jahrbuch, 1830, p. 240. 

 Non — — Dumont. Geol. Liege, 1832, p. 356. 



Non — Davreux. Essai sur la constit. geolog. Liege, 1833, p. 101, pi. v, 



figs. 4, 8. 



— — Murcliison. Sil. Syst., 1839, p. 105, fig. c. 



— TELLiNARitrs, Goldfuss. Petrefacta Germanise, 1834-40, vol. ii, p. 180, 



pi. exxxi, fig. 17, 1840. 

 Cardinia acuta, de Koninck. Carb. Poss. Belg., 1842, p. 75, pi. I, fig. 8. 

 — Agassiz. Translation Sow. Min. Conch., 1842. 

 tellinaria, de Koninck. Carb. Poss. Beige, 1842, p. 77, pi. I, fig. 14 ; 



pi. H, fig. 5. 

 Pachyodon exoletus, Brown. Ann. Mag. Nat. Hist., vol. xii, 1843, p. 392, 



pi. xvi, fig. 4. 



— ♦ antiquus, Brown. Ibid., p. 394, pi. xvi*, fig. 4. 



— transversus, Brown. Ibid., p. 395, pi. xvi*, fig. 5. 

 Levidensis, Brown. Ibid., p. 395, pi. xvi*, fig. 8. 



— agrestis, Brown. Ibid., p. 393, pi. xvi, fig. 11. 



Unio tellinariits, Garner. Nat. Hist. Staffordshire, 1844, p. 452, pi. e, fig. 23 



(no name nor description). 



— senex, Brown. Poss. Conch., 1849, p. 178, pi. lxxiii, fig. 31. 



— agrestis, Brown. Ibid., pi. lxxiii, fig. 20. 



— transversus, Brown. Ibid., pi. lxxiii, fig. 21. 



— Levidensis, Brown. Ibid., pi. lxxiii, fig. 30. 



— exoletus, Brown. Ibid., pi. lxxiii, fig. 25. 



Carbonicola acuta, M'Cog. Palaeozoic Possils, 1854, p. 514 (description only). 

 Anthracosia acuta, King. Ann. Mag. Nat. Hist., 1856, ser. 2, vol. xviii, pi. iv, 



fig 5, p. 57. 

 Unio Lottneri, Ludwig. Palaeontographica, vol. viii, 1860, p. 183, pi. lxxii, 



figs. 1, la, 2. 



— tellinarius, Ludwig . Ibid., vol. x, 1861, pi. iii, figs. 4 a — d. 

 Anthracosia acuta, Salter. Geol. Surv. Mem., Iron Ores of South Wales, 1861, 



pt. 3, pp. 226 and 228, pi. ii, figs. 20, 21. 

 Non — Reenter. Lethsea Geognostica, 1876, pi. xliv, fig. 9. 



— securieormis, Achepol. Niederrheinisch.-Westfalisch. Steinhohlen- 



gebirge, Atlas, 1880-83, p. 47, pi. xiii, figs. 3 — 6. 



— — Ibid., p. 59, pi. xvii, fig. 3. 



— — — Ibid., Suppl., pi. iii, fig. 1. 

 Cardinia tellinaria, Achepol. Ibid., pp. 40, 41, pi. xi, figs. 4, 9. 

 Anthracosia gracilis, Achepol. Ibid., Suppl., pi. iii, figs. 38, 39. 



— rectangularis, Achepol. Ibid., p. 86, pi. xxvii, figs. 1, 2. 



— — — Ibid., Suppl., pi. iv, fig. 12. 



— Fabricii, Achepol. Ibid., pp. 119, 120, pi. xxxvi, figs. 5, 11. 



