FORAMINIFERA OF THE WEST OF SCOTLAND. 231 



lQf . Textularia turris, d'Orbigny. 



Textularia turris, d'Orbigny, 1840, CBP. p. 46, pi. iv. figs. 27, 28. 

 Brady, 1884, FC. p. 366, pi. xliv. figs. 4, 5. 



3 Stations. 



Good aiid typical specimens at each Stn. 



Verneuilina, d'Orbigny. 



108. Verneuilina polystropha (Reuss). 



Butimina polystropha, Reuss, 1845, VBK. pt. ii. p. 109, pi. xxiv. fig. 53. 

 Verneuilina polystropha, Brady, 1884, FC. p. 386, pi. xlvii. figs. 15-17. 



„ „ Heron-Allen & Earland, 1913, CI. p. 55, pi. iv. figs. 1-5. 



21 Stations. 



Almost universally distributed, and frequently common. The general type at most of 

 the Stns. is a large, long, regularly constructed test, sometimes entirely grey at a parti- 

 cular Stn., sometimes ferruginous, and occasionally both tints together. The short broad 

 form, with usually a much more roughly constructed test, occurs at comparatively few 

 Stns., but is sometimes the sole representative of the species, as at Stns. 10, 12, 25, 

 and 26. The little types figured by us from Clare Island (tit supra) occur at five Stns. 

 only— 2, 12, 14, 19, and 20. 



Bigenerina, d'Orbigny. 



109. Bigenerina digitata, d'Orbigny. 



Bigenerina (Gemmulina) digitata, d'Orbigny, 1826, TMC. p. 262. No. 4, Module No. 58. 

 digitata, Brady, 1884, FC. p. 370, pi. xliv. figs. 19-24. 



6 Stations. 



Sparingly distributed, but frequent at Stns. 14 and 19. All the individuals are strongly 

 ferruginous except at Stn. 21, where the few specimens found were light grey. 



Spiroplecta, Ehrenberg. 



110. Spiroplecta biformis (Parker & Jones). 



Textularia agglutinins, var. biformis, Parker & Jones, 1865, NAAF. p. 370, pi. xv. figs. 23, 24. 

 Spiroplecta biformis, Brady, 1884, FC. p. 376, pi. xlv. figs. 25-27. 



4 Stations. 



Very rare, the best and most typical specimens at Stn. 18. 



ill. Spiroplecta wrightii, Silvestri. 



Spiroplecta sagittula, Wright, 1891, SWI. p. 471 ; 1902, FRI. p. 211, pi. iii. 

 Spiroplecta wrightii, Silvestri, 1903, S. pp. 59-64 (woodcuts). 

 Heron-Allen & Earland, 1913, CI. p. 56. 



18 Stations. 



Almost universally distributed and often very common, presenting all the well-known 

 variations in the size and development of the spiroplectine commencement. 



36* 





