316 Transactions of the Society, 



two descriptions lies in the fad that Terquem's specie- had a more 

 or Less carinated edge : this, however, is a feature of practically no 

 more than varietal importance. The constriction of the last chambei 

 in front of the oral aperture is much more pronounced in Milieu's 

 figures than in Terquem's, and this gives an air of greater refine- 

 ment and symmetry to the contour of the St. Erth specimen as 

 compared with Terquem's somewhat clumsy figure. Terquem does 

 not note it as being rare; according to Millett the species is frequent 

 in the Pliocene of St. Erth in Cornwall. 

 Length, - 27 mm. Breadth, 0-19 mm. 



339. Bolivina rvbusta Brady. 



Bolivina robus/a Brady, 1881, Quart . Journ. Micr. Sci., vol. xxi. N.S. p. 57. 



Ditto. (Brady) 1884, Foram. ' Challenger,' p. 421, pi. liii. figs. 7-9. 



Ditto. (Brady) Egger, 1893, Abhandl. k. bayer. Akad. Wiss., Gl. II. vol. xviii. 



p. 291, pi. viii. figs. 31, 32. 

 Ditto. (Brady) Millett, 1900, Malay Foramini fera, Journ. K. Micr. Soc, p. 543. 



A few specimens, apparently fossil, from a Tertiary shell-sand. 



340. Bolivina t&ctilarioides Beuss. 

 (Plate X. figs 10-12.) 



Bolivina textilarioides Eeuss, 1862, Sitzungsb. d.k. Akad. Wiss. Wien., vol. xlvi. 



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

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

 Ditto. (Brady) Millett, 1900, Malay Foraminitera, p. 542, pi. iv. fig. 5. 

 Bolivina Ixviqata (Williamson) Heron-Allen and Earland, 1909, Journ. R. 



Micr. Soc, p. 335. 



In the second number of our series- of papers we described our 

 specimens with reservations under the name Boliv'na laevigata 

 Williamson sp. After fuller consideration, and after examining a 

 considerable series of specimens of Williamson's type dredged in 



'(Figs. 7 1 1 arc drawn from North Sea specimens.) 



