72 CARBONIFEROUS AND PERMIAN FORAMINIFERA. 



SPIEILLINA CRETACEA, Jones, 1854. In Morris's Catal., Brit. Foss., 2nd edit., p. 42. 

 INFIMA, Id. Ibid, 

 sp., Id. Ibid. 

 ARENACEA, Williamson, 1858. Rec. Foram. Gt. Br., p. 93, pi. vii, 



fig. 203. 

 TROCHAMMINA (SQUAMATA) INCEKTA, Jones and Parker, 1860. Quart. Jouru. Geol. 



Soc., vol. xvi, p. 304. 



AMMODISCUS (species), Reuss, 1861. Sitzungsb. k. Akad. Wiss. Wien, vol. xliv, p. 365. 

 TROCHAMMINA INCERTA, Parker and Jones, 1862. In Carpenter's Introd. Foram., 



pp. 141, 312, pi. xi, fig. 2. 

 CORNUSPIBA CRETACEA, Reuss, 1862. Sitzungsb. k. Akad. Wiss. Wien, vol. xlvi, p. 



34, pi. i, fig. 10. 



var. IRREGULARIS, Id. Ibid., figs. 11, 12. 



INVOLUTINA SILICEA, Terquem, 1862. Mem. Acad. imp. Metz, for 1860, 1861, p. 450, 



pi. vi, fig. 11. (Deuxieme Mem. Foram. 

 du Lias.) 

 ASPEEA, Terquem, 1863. Ibid., for 18621863, p. 221, pi. x, fig. 21. 



(Troisieme Me'm. Foram. du Lias.) 



TROCHAMMINA INCERTA, Brady, 1864. Trans. Linn. Soc. Lond., vol. xxiv, p. 72. 

 CORNUSPIRA HOEHNESI, Karrer, 1866. Sitzungsb. k. Akad. Wiss. Wien, vol. Hi, 



p. 495, pi. i, fig. 10. 

 SERPULA ROESSLEEI, Schmid, 1867. Neues Jahrbuch fur Min., Jahrg. 1867, p. 583, 



pi. vi, figs. 46, 47. 



CORNUSPIRA OOLITHICA, Schwager, 1867. In Waagen's 'Ueber die Zone des Amm. 



Sowerbyi,' vol._i, part iii, p 655, pi. xxxiv (xi), 

 fig. 4. 

 TROCHAMMINA INCERTA, Jones, Parker, and Kirky, 1869. Ann. and Mag. Nat. Hist., 



ser. 4, vol. iv, p. 388, pi. xiii, fig. 1. 



COHNUSPIRA GHANULOSA, C. INFRAOOLITHICA, &c., Terquem, 1870. Troisieme Mem. 



Foram. du Syst. Oolithique, pp. 242244, 

 pi. xxv, figs. 1220. 

 OPERCULINA LIASINA, Brauns, 1871. Der Unterjura im nordwest. Deutschland, 



p. 447, &c. (Jlde Bornemann). 



TROCHAMMINA INCERTA, Miller and Vanden Broeck, 1873. Ann. Soc. Malac. Belg., 



vol. for 1873, Table. 

 Brady, 1873. Mem. Geol. Survey Scotland, Expl. Sheet 23, 



p. 95. 

 Id., 1873. (In Young and Armstrong's Catal.), Trans. Geol. 



Soc. Glasgow, vol. iv, p. 272. 



AMMODISCUS INFIMUS, Bornemann, jun., 1874. Zeitschr. d. deutsch. geol. Gesellsch., 



Jahrg. 1874, p. 725. 



Characters. Test piano-spiral, discoidal, thin ; consisting of numerous, narrow, 



more or less rounded convolutions of a non-septate tube of nearly uniform width. 



Aperture usually formed by the open unconstricted end of the tube. Diameter y^th inch 

 (0-5 mm.) 



