PLATE V 



Figs. 1-8. Delosina sutilis, sp.n. (No. 265). x 45. Fig. i, side view, microspheric. 

 Figs. 2, 6, side views, megalospheric. Figs. 5, 7, edge views, megalospheric. 

 Note. The oral end is at the base of these iigures. Fig. 3, apical or aboral 

 view, megalospheric. Fig. 4, oral view. Fig. 8, a horizontal section showing 

 five chambers (oral end at top). The earliest chamber has a loop shaped 

 aperture; no communication between the subsequent chambers. On the 

 right the sutural extension covering a canal is broken away ; the situation of 

 the canal can be seen in the corresponding position on the left side. The 

 oral tubes are seen in section at the top. 



Figs. 9-15. Delosina wiesneri, sp.n. (No. 266). x 45. Figs. 9-1 1 are drawn from 

 paratypes obtained by the 'Gauss' expedition. Fig. 9, side and base view 

 of a microspheric specimen. Fig. 10, basal or oral view, megalospheric. 

 Fig. 1 1 , interior view of a detached final chamber. The wide inner ring is 

 the surface of attachment to the previous chamber. Wiesner's canal is the 

 dark line running round the upper half. The side canals ("stitches") are 

 the short dark lines which run off from it to the sutural edge. Figs. 14, 15, 

 upper views. Fig. 12, under view. Fig. 13, edge view. All megalospheric. 

 Figs. 12-15 are drawn from Discovery specimens. 



Fig. 16. Delosina complexa (Sidebottom) (No. 262). x 70. Oral end at top, side view. 



Figs. 17, 18. Verneuilina 6ra((y2, Cushman (No. 234). x 75. Side views. 



Figs. 19-21. Verneuilina bradyi var. nitens, Wiesner (No. 235). x 80. Fig. 19, side 

 view. Fig. 20, top view. Fig. 21, base view. 



Figs. 22-26. Verneuilina minuta, Wiesner (No. 240). x 75. Fig. 22, top view. Figs. 

 23, 24, side views, microspheric. Fig. 26, side view, megalospheric. Fig. 25, 

 side view microspheric, viewed as a transparent object. 



Figs. 27-29. Textularia paupercula, sp.n. (No. 227). x 70. Fig. 27, side view as a 

 transparent object. Fig. 28, the same, opaque. Fig. 29, edge-oral view. 



Figs. 30-34. Verneuilina superha, sp.n. (No. 238). x 45. Figs. 30-33, side views in 

 different stages of grovirth and position. Fig. 34, side view as a transparent 

 object. 



Figs. 35,36. Gaudryina optca/am, Cushman (No. 243). x 75. Fig. 35, side view. Fig. 36, 

 edge-oral view. 



Figs. 37—40. Gaudryina deformis, sp.n. (No. 242). x 45. Figs. 37, 39, young specimens. 

 Fig. 38, adult, side-oral view. Fig. 40, adult, side-aboral view. 



Figs. 41-44. G«;v^m'«fl /(?>T«j§'mea, Heron-Allen and Earland (No. 245). x 75. Figs. 41, 

 42, young individuals in the triserial stage. Fig. 43, adult, side view. 

 Fig. 44, adult, edge-oral view. 



Figs. 45, 46. Gaudryina minuta, sp.n. (No. 244). x no. Fig. 45, side view as a trans- 

 parent object. Fig. 46, the same, opaque. 



Figs. 47-49. Gaudryina pauperata, sp.n. (No. 246). x 100. Fig. 47, side view. Fig. 48, 

 edge view. Fig. 49, side view, as a transparent object. 



Figs. 50, 51. Robertina minutissima (J. Wright) (No. 253). x 85. Fig. 50, back view. 

 Fig. 51, front-oral view. 



Figs. 52, 53. Robertina arcft'ca, d'Orbigny (No. 252). x 78. Fig. 52, back view. Fig. 53, 

 front-oral view. 



Figs. 54,55. Virgulina schreibersiana, Czyzek var. complanata, Egger (No. 270). x 75. 

 Fig. 54, back view. Fig. 55, front-oral view. 



