Ke et al.—Post-glacial Foraminifera from the incised Yangtze paleo-valley of China


which suggests that these short oval or/and high fusiform forms belong to the same species. The specimen illustrated here has a shorter test, resembling the juvenile form of Bulimina marginata d’Orbigny (1826). The rim of the early chambers has a series of short blunt spines, while the later chamber has a series of crenulations.


Family Bolivinitidae Cushman, 1927 Genus Bolivina d’Orbigny, 1839b Bolivina robusta Brady, 1881 Figure 5.1, 5.2


1881 Bolivina robusta Brady, p. 57. 1922b Bolivina robusta var.; Cushman, p. 46, pl. 6, fig. 6. 1965 Bolivina robusta; He, Hu, and Wang, p. 87, pl. 6, fig. 13. 1965 Bolivina cochei; He, Hu, and Wang, p. 88, pl. 6, figs. 16, 17.


1965 Bolivina obscura; He, Hu, and Wang, p. 88, pl. 7, figs. 1–3.


1988 Bolivina robusta;Wang et al., p. 147, pl. 34, figs. 1–5. 1994 Bolivina robusta; Jones, pl. 53, figs. 7–9.


Holotype.—Syntype (BMNH ZF1194) from Challenger Sta. 191A , Kai Island, Central Pacific (1061 m); (BMNH ZF1195) from Challenger Sta. 174B, Fiji, Pacific (2041 m).


Occurrence.—Recent coastal water and Quaternary sediments of Bohai Sea, Yellow Sea, East China Sea and South China Sea (Wang et al., 1988); 13–3475m (Jones, 1994).


Remarks.—This species has great variability in morphology. Wang et al (1988) reported the megalospheric and microspheric tests. The specimens illustrated here are elongated cuneiform with blunt basal end, resembling a microspheric test. It was also reported that a long sharp spine may exist for this species (Jones, 1994, p. 58, pl. 53, figs. 8, 9).


Superfamily Discorbacea Ehrenberg, 1838 Family Discorbidae Ehrenberg, 1838 Genus Rosalina d’Orbigny, 1826 Rosalina bradyi (Cushman, 1915) Figure 5.7–5.9


1931 Discorbis globularis; Cushman, p. 22, pl. 4, figs. 9a–9c. 1960 Rosalina bradyi; Barker, pl. 86, fig. 8.


1988 Rosalina bradyi; Wang et al., p. 156, pl. 23, fig. 12.


1915 Discobis globularis var. bradyi Cushman, p. 12, pl. 8, fig. 1.


1965 Rosalina bradyi; He, Hu, and Wang, p. 89, pl. 8, figs. 5a–5c, 6a–6c.


Holotype.—USNM 9027 from Alabatross station D4863 in 194m off Japan (Cushman, 1915, pl. 8, fig. 1).


Occurrence.—Neogene to Recent in Japan; Recent Pacific; East China Sea, South China Sea; inner shelf in East China Sea (He et al., 1965; Wang et al., 1988).


Remarks.—The test of this species is compressed. The speci- mens illustrated here clearly show the wall difference between


1109


the coarse-perforated dorsal and fine-perforated ventral sides (Figure 5.8). The umbilical lobe of specimens is scattered and thickened.


Genus Buccella Andersen, 1952 Buccella frigida (Cushman, 1922c) Figure 5.10–5.12


1922c Pulvinulina frigida Cushman, p. 144. 1931 Eponides frigida; Cushman, p. 45. 1952 Bucella frigida; Anderson, p. 144, figs. 4–6. 1965 Buccella frigida; He, Hu, and Wang, p. 93, pl. 8, figs. 4a–4c.


1988 Buccella frigida; Wang et al., p. 157, pl. 23, figs. 3, 4.


Holotype.—Lectotype (USNM CC 3032) from station 5, bay between Black Whale and Olasks Harbors, east coast of Hudson Bay at 18m water depth (Cushman, 1931).


Occurrence.—Recent Arctic, Okhotsk Sea, Japan Sea, Bering Sea, Pacific, northern Atlantic; Bohai Sea, Yellow Sea, north- west of East China Sea, and the South China Sea; Quaternary in Jiangsu Province (He et al.,1965, Wang et al., 1988); 34–402m (Jones, 1994).


Remarks.—The dorsal side of this species is filled with an amorphous material radiating out from the umbilical region. These materials usually distribute along the sutures. Less amorphous material may be observed for the later sutures. Supplementary apertures lie at the ends of the sutures, forming bigger pores and usually covered by the same amorphous material (Fig. 5.11). The amorphous material may be more around the supplementary aperture than the central umbilicus area. A slightly keeled periphery was also observed (NHM ZF 2220–2221). However, the keel is indistinct in the specimens of this study.


Genus Helenina Saunders, 1961 Helenina anderseni (Warren, 1957) Figure 6.4–6.6


1957 Pseudoeponides anderseni Warren, p. 39, pl. 4, figs. 12–15. 1957 Helenina anderseni; Saunders, p. 374. 1961 Helenina anderseni; Saunders, p. 148.


1988 Helenina anderseni; Wang et al., p. 158, pl. 24, figs. 1, 2.


2011 Helenina anderseni; Gennari et al., p. 249, pl. 1, figs. 1–6, pl. 2, figs. 1–4.


Holotype.—(LSUGM 2009) from wet marsh on the northeast


side of Crosscut Canal at Bay Pomme d’Or (Warren, 1957, pl. 4, fig. 12–15).


Occurrence.—Widely distributed in low-salinity coastal water; inner shelf of East China Sea (Wang et al., 1988).


Remarks.—Warren (1957) erected this species, which usually has supplementary apertures within the deeply incised sutures dorsally near the junction of spiral and septal sutures, and within the incised sutures ventrally near their middle points.


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