Recent and Fossil Foraminifcra. 335 



86. Bolivina laevigata Williamson sp. 



Textularia variaMis\ax. laevigata Williamson, 1858, Recent Foram.Gt. Britain, 



p. 77, pi. iv. fig. 168. 

 Bolivina textilarioides Renss, 1862, Sitzungsb. d. k. Akad. Wiss. Wien., 



vol. xlvi. p. 81, pi. x. fig. 1. 

 Ditto. (Renss) Brady, 1884, Foram. ' Challenger/ p. 419, pi. lii. figs. 23-25. 

 Ditto. (Reuss) Balkwill and Wright, 1885, Trans. R, Irish Acad., vol. xxviii. 



(Science) p. 334. 

 Bolivina laevigata (Williamson) Brady, 1887, Synopsis British Recent Fora- 



minifera. 



Fossil. Our specimens conform to Reuss' s figure B. texti- 

 larioides (suprd). Following Balkwill and Wright, and also 

 Brady in his " Synopsis," we have assigned them to B. laevigata 

 Williamson, but we are not at all convinced as to the correctness 

 of their identification of these two forms. Williamson's type, 

 which lias well-marked peculiarities in its initial chambers, and 

 in the texture of its surface, is of continual recurrence in North 

 Sea and other British dredgings. It presents, in our opinion, 

 features sufficiently marked and distinct from B. textilarioides to 

 entitle the latter form to separate specific rank. 



87. Bolivina nobilis Hantken. 



Bolivina nobilis Hantken, 1875 (1876) A magy. kir. foldt. int. evkdnyve, 



iv. 56, pi. xv. fig. 4, and Mitth. a. d. Jahrb. k. nngar. geol. Anstalt 



iv. 1875 (1881) 65, same pi. and figr. 

 Ditto. (Hantken) B.ady, 1884, Foram. 'Challenger,' p. 424, pi. liii. figs. 



14, 15. 

 Ditto. (Hantken) Millett, 1900, Jonrn, R, Micr. Soc. p. 541, pi. iv. fig. 4. 

 Ditto. (Hantken) Earland, 1905, Jouin. Qnekett Micr. Club, ser. 2, vol. ix. 



No. 57, p. 209. 



Fossil. One large and typical example. 



88. Bolivina plicata d'Orbigny. 



Bolivina plicata d'Orbigny, 1839, Foram. Amer. Merid., p. 62, pi. viii. figs. 4-7. 

 Ditto. (d'Orbigny) Brady, 1870, Ann. and Mas. Nat. Hist., ser. 4, vol. vi. 



p. 302, pi. xii. fig. 7. 

 Ditto. (d'Orbigny) Brady, 1887, Synopsis British Recent Foraminifera. 

 Ditto. (d'Orbigny) Halkyard, 1889, i rans. and Ann. Rep. Manchester Micr 



Soc, p. 35, pi. i. fig. 13. 

 Ditto. (d'Orbigny) Goi ; s, 1894, Arctic and Scandinavian Foram., p. 51, pi. ix. 



figs. 487, 488. 



Recent and perhaps also fossil. The specimens are, in every 

 particular, characteristic 



