152 PORAMINIFERA OF THE CRAG. 



Victoria. In the Crag the species is not common. It has been found at Sutton ; 

 Broom Hill, zones d and e ; Aldborough, zone g ; Tattingstone, zone d ; and at 

 Sudbourne Hall, zone d, where the species is more common and better developed. 



6. Textilaria conica, cVOrbigny, 1839. Plate VII, fig. 24. 



Textularia conica, d'Orb., 1839. Foram. Cuba, p. 135, pi. i, figs. 19, 20. 



— — Brady, 1884. Eeport ' Challenger,' p. 365, pi. xliii, figs. 13, 



14; pi. cxiii, figs, la, b. 



— — Haeusler, 1890. Abhandl. Schweiz. Pal. Ges., p. 72, pi. xi, 



figs. 40—42, 45. 



— — Chapman, 1892. Journ. Royal Microsc. Soc, p. 329, pi. vi, 



fig. 20. (Somewhat irregular with the 

 last two chambers.) 



— — Egr/er, 1S93. Abhandl. k. Akad. Bayer., vol. xxviii, part 2, 



p. 273, pi. vi, fig. 35. 



Characters. — Shell short, tapering rapidly to the apex, triangular in outline, 

 more or less compressed, and varying from round to oval in transverse section ; 

 chambers horizontal, depressed, narrow in side view. 



This may be regarded as a feeble form of T. trochus, rather irregular in its 

 growth, and oval in section. 



Occurrence. — Textilaria conica is a tropical form, commonest perhaps on the coral 

 reefs of the Eastern Archipelago and the West Indies. Specimens were obtained 

 by the " Challenger " from depths varying from 18 to 420 fathoms. There are 

 few records of the occurrence of the species in a fossil condition. It has been 

 noted from the Upper Chalk of Taplow (Chapman). The Crag specimens were 

 obtained with varying frequency from nearly every zone examined. It is most 

 common at Sudbourne Hall, zone d. 



7. Textjlauia gibbosa, d'Orbigny, 182G. Plate III, figs. 10 — 13; and Plate V, 



figs. 13 and 14. 

 Part I, 18 6G, Appendix II, Table, No. 63. 



Polymorpha pineiformia, SolJani, 1791. Testaceographia, vol. i, part. 2, 



p. 118, pi. cxxvii, fig. h. 

 — janiformia. Idem. Ibid., p. 119, pi. cxxxii, figs. I, K, L, M ; and | x 



vol. ii, p. 39, pi. xiv, fig. h. 

 Nautili amphorarii vel janiformes, Idem, 1798. Ibid., App., p. 141, pi. 7, 



figs. 46 e, e. 



' These rough and often obscure figures appear to have reference to Textilariee more or less 

 closely allied to T. (jlbbosa, d'Orb. 



