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Stylosphcera obtusa sp. nov. Pl. IV, fig. 37-

The large outer sphere is smooth, 0.16 mm. in diameter, the wall is 0.02 in thickness; the pores 0.007 and the intermediate lattice-work 0.004 mm- in width. The inner sphere is 0.04 in diameter, and the pores in it 0.005 mm. wide. The spine at one end is stout and gradually tapering, 0.14 in length , and 0.045 mmin width at the base; the opposite spine is short and conical, but it is doubtful if it is fully preserved. Three or four rays are shown connecting the outer and inner test. Rare, in diabase tuff from Mount Rajoen.

Genus Staurosphcera, Haeckel.

The latticed test is simple, with four radial spines lying in one plane.

Staurosphcera sp. ind. a. Pl. II, fig. 12.

The test, which is very poorly preserved, is in section somewhat four-sided, its diameter is 0.2 mm. Only three spines have been preserved, and two of these are imperfect, the one fairly complete is bayonet shaped, 0.44 mm. in length, and 0.04 in width. In jasper from the Upper Kapoewas, near the mouth of the Tandjan River.

Order Prunoidea, Haeckel.

Genus Cenellipsis, Haeckel.

The test is a simple elliptical latticed shell, without constriction and without radial spines.

Cenellipsis gracilis sp. nov. Pl. I, figs. 13, 14.

The test is short oval with smooth surface. There are 8—10 rows of pores in the exposed half. Long diameter 0.14; trans-

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