106 FORAMINIFERA OF THE CRAG. 



2. Spiroloculina excavata, d'Orhigny, 1846. Plate V, fig. 2 ; Woodcuts, 



figs. 2 a, 2 h. 



Spiholoctjlina excavata, d'Orhigny, 1846. Poram. Foss. Vienne, p. 271, pi. xvi, 



figs. 19, 20. 



— (not named), Costa, 1838. Fauna Eegno Napoli, pi. ii, fig. 2. 



— EXCATATA, Costa, 1856. Atti Accad. Pontan., vol. vii, fasc. 2, 



p. 311, pi. xxiv, fig. 11. 



— DEPEES8A, var. EOTUNDATA, Williamson, 1857. Eec. Brit. Fos., 



p. 82, pi. vii, fig. 178. 



— Feeteei, Reuss, 1864. Denks. k. Akad. Wiss. Wien, vol. xxiii, p. 6, 



pi. i, fig. 9. 



— EXCAVATA, Brady, 1865. Nat. Hist. Trans. Northumb. and Durham, 



vol. ii, part 1, p. 93, pi. xii, fig. 1. 



— cateenosa, Karrer, 1867. Sitz. k. Ak. Wi.ss. Wien, vol. Iv, Abth. 1, 



p. 358, pi. ii, fig. 3. 



— EXCATATA, Terquem, 1875. Plage Dunkerque, fasc. 1, p. 38, pi. v, 



fig. 17. 



— ANGULOSA, Terquem (after d'Orhigny), 1878. Mem. Sec. Geol. Fr., 



ser. 3, vol. i, p. 53, pi. x, fig. 7. 



— CEASSA, Seguenza, 1880. Mem. E. Accad. Lincei, ser. 3, vol. vi, 



p. 152, pi. xiv, fig. 10. 



— (indet.), Carpenter. Introd. Foram., 1862, pi. vi, fig. 1 ; re-figured 



in Schlumberger's Feuill. Jeuu. Nat. Annee 

 xii, 1882, p. 29, pi. ii, fig. 4. Apparently 

 excavate, with slightly concave chambers. 



— cf. BiCAEiNATA, Schivager, 1883. Palseontographica, vol. xxx, 



p. 85, pi. i, fig. 4. 

 E-s.CA.YA.TA, Brady, 1884!. ' Challenger' Eept., p. 151, pi. ix, figs. 5, 6. 



— — Fornasini, 1886. Boll. Soc. Geol. Ital., vol. v, p. 238, 



No. 368. 



— LIMBATA, Chapman, 1892. Quart. Journ. Geol. Soc, vol. xlviii, 



p. 516, pi. XV, fig. 4. 



— EXCATATA, Fgger, 1893. Abhandl. k. Bayer. Akad., cl. ii, vol. xviii 



pp. 219, 223, pi. i, figs. 44, 45. 



— — Scklumberger, 1893. Mem. Soc. Zool. Fr., vol. vi, 



p. 201, fig. 1 ; and pi. iii, fig. 68. 



— — de Amicis, 1893. Boll. Soc. Geol. Ital., vol. xii, fasc. 3, 



pp. 20, 178, 179, 310. 



— SoLDANii, Fornasini, 1894. Foram. Coll. Soldani (Sagg. Oritt.), 



p. 20, pi. o, fig. 1. 



Characters. — Lateral surfaces of the chambers plane or hollowed, and inclined 

 to the axis of the shell, either by a uniform slope or by steps, so that it 



