the Nomenclature of the Foraminifera. 259 



Fig. 9. Grammostomum hursigerum. Embedded cast of a 

 Textilaria (to all appearance), with oval segments. 



Fig. 10. Nodosaria index. Chamber-casts of a doubtful Fora- 

 miniferj in a row, with indications of a narrow straight 

 shell, but showing no stolons. 



Fig. 11. Rotalia antiqua. A rotaliform Endothyra'^ with 

 chamber-casts like those of small Planorhulince (Mantell, 

 Philos. Transact. 1846, pi. xxi.), and at the same time 

 like those of Phillips's Endothyra Boivmani (Proc. Geol. 

 Polytech. Soc. W. Hiding Yorkshire, 1846, vol. ii. p. 277, 

 pi. vii. fig. 1). 



Fig. 12. Tetvataxis conica (1843); fig. 13. T. conical , side 

 view ("compare Textilaria palceotrochus''^). As before 

 intimated, this is a Vahidina, or at least a Valvuline 

 modification of Trochammina. 



Fig. 14. Tejutilariafalcata. Probably the edge view of fig. 17. 



Fig. 15. T. lagenosa. The same as fig. 9. 



Figs. 16 & 16*. T. lunata (1843). Apparently a broad pyra- 

 midal Textilaria. 



Fig. 17. T. recurvata. Side view of T. falcata^ fig. 14. 



Forms similar to figs. 11, 12, 13, 14, and 17, besides others, 

 have been found in the Mountain-limestone of England and 

 Scotland by Messrs. Tennant, Darker, Phillips, Sorby, Hark- 

 ness, Holl, Young, Moore, and Brady. The last-named has 

 made a preliminary notice of them in the Brit. Assoc. Report 

 for 1869, Trans. Sect. p. 381, and has elaborated one form in 

 particular {Saccavimina Carteri) in the Ann. Nat. Hist. ser. 4, 

 vol. vii. p. 177 &c., pi. xii. See also " Monogr. Polymorph.^'' 

 Linn. Soc. Trans, vol. xxvii. p. 199. 



Fusidina. — With regard to the Fusuline specimens, Prof. 

 Ehrenberg has evidently taken Alveolina mefo,var./3 (F.&M.), 

 the Melonia sphceroidea of De Blainville (1824) , as the type for 

 those having a prolatcly spheroidal shape. This is also the 

 Borelis melonioides of De Montfort (1808) ; hence the use also 

 of the latter generic termf. But the Carboniferous specimens 

 are not of this genus, and had been rightly discriminated by 

 Fischer de Waldheim :|:. 



t For a bibliographic history of Alveolina, see our memoir in Ann. Nat. 

 Hist. ser. 3, vol. viii. pp. 161 &c. 



X ' Oryctograph. Moscou,' 1830, p. 17, pi. xiii. Figs. 1-5 illustrate his 

 Fusulina cylindrica ; and figs. 6-11 are devoted to his F. flepressa, wliich 

 is the same as F. ct/Iindrica, but showing a different aspect of interior, 

 bein» opened at a different portion of the surface by weathering. See 

 also D'Orbigny in ' Geol. Russia, &c. vol. ii. p. 15 ; and D'Eichwald's ' Le- 

 thaea Eossica,' 5^ livr. 1859, pp. 349 &c. 



