PLATE VI 



Figs. 1-4. Virgulina subdepressa, Brady (No. 271). x 40. Fig. i, megalospheric, side 

 view. Fig. 2, the same, edge-oral view. Fig. 3, microspheric, side view. 

 Fig. 4, the same, edge-oral view. 



Figs. 5-7. Bolivina punctata, d'Orbigny (No. 272). x 70. Side views. Fig. 5, micro- 

 spheric. Fig. 6, megalospheric Fig. 7, ? pauperate form. 



Figs. 8-10. Bolivina spinescens, Cushman (No. 274). x 70. Figs. 8-9, side views. 

 Fig. 10, edge-oral view. 



Figs. 11-14. P^eMt/ote/mzna cAapwam (Heron-Allen and Earland) (No. 282). x 40. Figs. 

 II, 14, edge views. Fig. 12, ventral view. Fig. 13, dorsal view. Fig. 14 is 

 drawTi from a transparent specimen, external lines in black, part of the 

 internal structure in tone. 



Figs. 15, 16. Cassidulina elegans, Sidebottom (No. 290). x 70. Fig. 15, oral view. 

 Fig. 16, dorsal view. 



Figs. 17-20. Cassidulina lens, sp.n. (No. 285). x 40. Figs. 17, 18, 20, side views. 

 Fig. 17, as a transparent object. Figs. 18, 20, opaque. Fig. 19, edge view. 



Figs. 21, 22. Cassidulina subglobosa, Brady (No. 288). x 40. Abnormal specimens. 



Figs. 23-25. Cassidulina pacifica, Cushman (No. 291). x 40. Fig. 23, front oral view. 

 Fig. 24, edge view. Fig. 25, dorsal view. 



Figs. 26, 27. Cassidulina subglobosa var. tuberculata, Heron-Allen and Earland (No. 289). 

 X 40. Fig. 26, front oral view. Fig. 27, edge view. 



Figs. 28-32. Ehrenbeigina parva, sp.n. (No. 298). x 75. Fig. 28, ventral view, 

 opaque, megalospheric. Fig. 29, edge view, the same. Fig. 31, end-oral 

 view, the same. Fig. 32, as Fig. 28 viewed as a transparent object. Fig. 31, 

 edge view, opaque, microspheric. 



Figs. 33-35. Ehrenbergina hystrix, Brady (No. 295). x 40. Fig. 33, dorsal view. 

 Fig. 34, oral end view. Fig. 35, ventral view. 



Fig. 36. Lagena apiculata (Reuss) (No. 308). x 70. Cylindrical variety. 



Figs. 37, 38. Lagena aspera, Reuss (No. 309). x 70. Fig. 37, side view. Fig. 38, oral end 

 view. 



Figs. 39,40. Lagena basireticulata, sp.n. (No. 313). x 80. Fig. 39, side view. Fig. 40, 

 base view. 



Figs. 41, 42. Lagena clowesiana, sp.n. (No. 323). x 70. Fig. 41, edge view. Fig. 42, 

 side view. 



Fig. 43. Lagena torquata, Brady (No. 408). x 70. 



Figs. 44, 45. Lagena desmophora, Rymer Jones (No. 328). x 70. Fig. 44, pauperate 

 form comparable with Rymer Jones's original figure No. 23. Fig. 45, 

 strongly costate form as figured by Brady and other authors. 



Figs. 46, 47. Lagena fimbriata, Brady (No. 333). x 75. Spinous forms. 

 Figs. 48, 49. Lagena deaconi, sp.n. {No. 227). x 75. Fig. 48, side view. Fig. 49, edge view. 

 Figs. 50, 51. Lagena glans, sp.n. (No. 339). Fig. 50, side view, x 40. Fig. 51, a 

 fragment showing detail of ornament, x 150. 



Fig. 52. Lagena globosa (Montagu) var. setosa, var.n. (No. 342). X 50. 



Figs. 53, 54. Lagena guntheri, sp.n. (No. 346). x 75. Fig. 53, oral end view. Fig. 54, 

 side view. 



Figs. 55-57. Lagena heronalleni, sp.n. (No. 348). Figs. 55, 57, side views, x 50. Fig. 56, 

 detail of rib structure showing the quadrangular pits vnth enclosing shell 

 layer, x 150. 



Figs. 58-60. Lagena hispidula, Cushman (No. 351). x 70. Showing range of form. 

 Fig. 59 shows rupture of outer layer and inner supporting spines. 



Figs. 61-63. Lagena johni, sp.n. (No. 353). x 75. Fig. 61, partial side view. Fig. 62, 

 basal and side view. These two figures show the basal auricles. Fig. 63, 

 edge view. 



