. Bulletin of the British Museum (Natural History), Geology. . FORAMINIFERA OF THE TOGOPI FORMATION 19 Material. 3 specimens. NB 9447, 9449, 9452. Variation. Length 0-46-0-90 mm, width 0-30-0-59 mm, thickness 0-21-0-42 mm. Remarks. Only the figured specimen is complete. However, enough is preserved of the others to show that the peripheral margins of the older chambers always project to form weak ridges. This feature is less apparent in the holotype (Cushman & Todd 1944 : pi. 9, fig. 31a) than in the para- type (1944: pi. 9, fig. 30). The main difference between S. lucida and S. communis (
. Bulletin of the British Museum (Natural History), Geology. . FORAMINIFERA OF THE TOGOPI FORMATION 19 Material. 3 specimens. NB 9447, 9449, 9452. Variation. Length 0-46-0-90 mm, width 0-30-0-59 mm, thickness 0-21-0-42 mm. Remarks. Only the figured specimen is complete. However, enough is preserved of the others to show that the peripheral margins of the older chambers always project to form weak ridges. This feature is less apparent in the holotype (Cushman & Todd 1944 : pi. 9, fig. 31a) than in the para- type (1944: pi. 9, fig. 30). The main difference between S. lucida and S. communis (and its sub- species) is that in typical members of the latter group the periphery is flat or more commonly concave, while in the former it is convex. Distribution. Fossil: Pliocene of Pacific coast of Japan (Asano 1951). Recent: Western Pacific from Japan (Asano 1956a) southwards to south-eastern Australia (Cushman & Todd 1944). Fig. 9 Spiroloculina cf. angulata Cushman. P50064. Apertural view of specimen figured on PI. 1, fig. 4. Sample NB 9447. x40. Figs 10, 11 Spiroloculina manifesta Cushman & Todd. Apertural views of specimens figured on PI. 1, figs 8, 9. Sample NB 9450. x40. 10, P50068, megalospheric form. 11, P50069, microspheric form. Spiroloculina manifesta Cushman & Todd Figs 10, 11; PI. 1, figs 8, 9 1917 Spiroloculina canaliculata d'Orbigny; Cushman: 30; pi. 4, figs 1-3 {non d'Orbigny 1846). 1921 Spiroloculina depressa d'Orbigny; Cushman : 394; pi. 81, fig. 2 only (non d'Orbigny 1826). 1921 Spiroloculina canaliculata d'Orbigny; Cushman : 395; pi. 80, fig. 3a, b. 1932 Spiroloculina grateloupi d'Orbigny; Cushman (pars): 34; pi. 8, fig. 9 only (non d'Orbigny 1826). 1944 Spiroloculina manifesta Cushman & Todd : 62; pi. 8, figs 26a-28. 1951 Spiroloculina manifesta Cushman & Todd; Asano : 15, text-figs 101, 102. 1956a Spiroloculina manifesta Cushman & Todd; Asano : 68; pi. 7, figs 4a, b, 8a, b. Material. 36 specimens. NB 9448, 9449, 9450, 9452. Vari
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