CARBONICOLA AQUILINA. 69 
12. CaRBonicona AQUILINA, Sowerby. Plate V, fig .2; Plate IX, figs. 1—10, 12—37 ; 
Non 
Plate X, figs. 1—42 ; Plate XI, figs. 31—33. 
Unio (no specific name), Ure. Natural History of Rutherglen, 1793, pp. 310, 311, 
pl. xvi, fig. 4. 
— aguininus, Sowerby. In Prestwich, J.,On the Geology of the Coal-field of 
Coalbrookdale (read April 27th, 1836), Trans. Geol. 
Soe. London, ser. 2, vol. v, 1840, pl. xxxix, fig. 12. 
— PHASEOLUS, Sowerby. Ibid., pl. xxxix, fig. 11. 
— aTratus, Goldfuss. Petrefacta Germania, livr., 1837, p. 180, pl. exxxi, 
fig. 16. 
PacHYODON LATERALIS, Brown. Ann. and Mag. Nat. Hist., 1843, p. 391, pl. xv, 
fig. 3. 
— SULCATUS, Brown. Ibid., p. 391, pl. xv, figs. 4 and 5. 
= BIPENNIS, Brown. Ibid., p. 391, pl. xv, fig. 9. 
Unio LATERALIS, Brown. Fossil Conchology, 1849, p. 177, pl. xxiii, fig. 26. 
—  BIPENNIS, Brown. Ibid., p. 177, pl. lxxiii, fig. 27. 
— suncatus, Brown. Ibid., p. 177, pl. Ixxiii, figs. 28, 29. 
— aguininus, Brown. Ibid., p. 181, pl. lxxviii, fig. 23. 
—  puHaskoLus, Brown. Ibid., p. 181, pl. Ixxvii, figs. 21, 22. 
AnTHracosta Brantana, King. Ann. and Mag. Nat. Hist., 1856, ser. 2, vol. xvii, 
p- 54, pl. iv, figs. 1, 2. 
Unio securirormis, Ludwig. Paleontographica, Band viii, 1859, p. 33, pl. iv, 
figs. 1—9. 
ANODONTA pROCERA, Ludwig. Ibid., p. 36, pl. v, figs. 9, 10. 
= cicatricosa, Ludwig. Ibid., p. 35, pl. v, figs. 7, 8. 
Unto crasstpENs, Ludwig. Ibid., Bd. viii, 1861, p. 184, pl. lxxi, figs. 15—17. 
ANTHRACOSIA AQuILINA, Salter. Mem. of the Geol. Survey of Great Britain, Iron 
Ores of South Wales, pt. 3, 1861, pl. ii, fig. 17. 
_ xQuitines, Hull. Coal-fields of Great Britain, 1873, pl. i, fig. 5. 
— SECURIFORMIS, Aoenen. Zeitsch. Deutsch. Geol. Gesell., vol. xxxiii, 
1881, p. 686, pl. xxvi, figs. 6 and 7. 
— aquinina, Ward. Trans. North-Staff. Inst. Mining and Mech. 
Engineers, vol. x, 1890, p. 128, pl. i, figs. 5 and 14. 
—_ Bryricu!, Achepol. Niederrheinisch.-Westfilliche Steinkohlen 
Gebirge, Atlas, 1880-83, p. 60, Blatte xvii, 
figs. 4, 20; Supplement, iii, figs. 17—21. 
— Sertor, Achepol. Ibid., p. 84, ents 1 and 2; Supp. iii, figs. 23—29. 
— Lorrnert, Achepol. Ibid., Supp. iv, fig. 4. 
— Decuent, Achepol. Ibid., Supp. iv, figs. 8—10. 
= HavcuHeEcornet, Achepol. Ibid., Supp. iv, figs. 18, 15. 
— Berenpti ?, Achepol. Ibid., Supp. iv, figs. 47, 48. 
— Romert, Achepol. Ibid., Supp. iv, figs. 79, 80. 
Specific Characters—Shell transversely ovate, flattened and compressed, 
variable. Anterior end rounded, compressed, and small, its upper border being at 
