542 Transactions of the Society. 



Bolivina textilarioides Beuss, plate IV. fig. 5. 



Textularia variabilis var. Isevigata Williamson, 1858, Eec. 

 Forani. Gt. Britain, p. 77, pi. vi. fig. 168. Bolivina textilarioides 

 Beuss, 1862 (1863), Sitzungsber. k. Akad. Wiss. Wien, vol. xlvi. 

 p. 81, pi. x. fig. 1. B. textilarioides (Beuss) Terrigi, 1883, Atti 

 Accad. Pontif. Nuovi Lincei, vol. xxxv. p. 191, pi. iii. fig. 32. B. 

 textilarioides (Beuss) Brady, Parker, and Jones, 1888, Trans. Zool. 

 Soc, vol. xii. p. 221, pi. xliii. fig. 1. B. texhdarioides (Beuss) 

 Burrows, Sherborn, and Bailey, 1890, Journ. B. Micr. Soc., p. 554. 

 pi. viii. fig. 25. Bolivina textilarioides Murray and Benard, 1891, 

 Chall. Bept. 'On Deep-Sea Deposits,' pp. 110, 130, pi. xiii. fig. 3 5>22 . 

 B. textilarioides (Beuss) Chapman, 1892, Journ. B. Micr. Soc, 

 p. 757, pi. xii. fig. 12. B. texlularioides (Beuss) Egger, 1893, 

 Abhandl. k. bayer. Akad. Wiss., CI. II. vol. xviii. p. 297, pi. viii. 

 figs. 13-16, 110-112. B. textularioides (Beuss) Egger, 1895, 

 Jakresbericht xvi. Naturhist. Ver. Passau, p. 12, pi. i. fig. 8. B. 

 textularioides (Beuss) Egger, 1899, Abhandl. k. bayer. Akad. Wiss., 

 CI. II. vol. xxi. p. 44, pi. xvi. figs. 1-3. 



This variable species is represented by two well marked forms, 

 both of which are figured by Brady in the ' Challenger ' Beport. In 

 the one which is here selected for illustration, the cell- walls are quite 

 smooth and clear, with the exception of the sutures, which are covered 

 with opaque granular matter. In the other form, which is well 

 figured by Terrigi, the chambers are much inflated and the surface 

 porous. 



It is abundant in the Malay Archipelago, and is found, in greater 

 or smaller quantities, at most of the Stations. 



Bolivina dilatata Beuss. 



Bolivina dilatata Beuss, 1850, Denkschr. k. Akad. Wiss. Wien, 

 vol. i. p. 381, pi. xlviii. fig. 15. Textularia variabilis var. spathulata 

 Williamson, 1858, Bee. Foram. Gt. Britain, p. 76, pi. vi. figs. 164, 

 165. B. dilatata (Beuss) Brady, Parker, and Jones, 1888, Trans. 

 Zool. Soc, vol. xii. p. 221, pi. xliii. figs. 3, 6. B. dilatata (Beuss) 

 Malagoli, 1888, Boll. Soc. Geol. Ital., vol. vii. p. 376, pi. xiv. figs. 

 5-10. B. dilatata (Beuss) Terrigi, 1899, Mem. B. Acad. Lincei, 

 ser. 4, vol. vi. p. 110, pi. v. fig. 7. B. dilatata Murray and Benard, 

 1891. Chall. Bept. ' On Deep-Sea Deposits,' p. 90, pi. xiii. fig. 2, 4. 

 B. dilatata (Beus3) Terrigi, 1891, Mem. B. Com. Geol. d'ltalia, vol. 

 iv. p. 75, pi. i. fig. 29. B. dilatata (Beuss) Woodward and Thomas, 

 1893, Geol. and Nat. Hist. Survey of Minnesota, vol. iii. p. 33, pi. o. 

 fig. 26. B. dilatata (Beuss) Egger, 1893, Abhandl. k. bayer. Akad. 

 Wiss., CI. II. vol. xviii. p. 294, -pi. viii. figs. 17-20. B. dilatata (Beuss) 

 Goes, 1894, K. Svenska Vet.-Akad. Handl., vol. xxv. p. 50, pi. ix. 

 figs. 482-486, and pi. xiv. figs. 5-10. B. dilatata (Beuss) Egger, 

 1895, Jahresbericht xvi. Naturhist. Ver. Passau, p. 10, pi. 1, fig. 6. 



