PLATE 11.

Legion SPUMELLARIA.

Order SPHÆROIDEA.

Family Astrosphærida.

PLATE 11.
Astrosphærida.
Diam.Page.

Fig. 1. Lychnosphæra regina, n. sp.,

×200[277]
The entire shell and the central capsule. Numerous club-shaped radial apophyses or cœcal sacs arise from the pink central capsule and are protruded through the pores of the medullary shell, which is completely hidden by them. The sarcomatrix in the calymma, surrounding the central capsule, exhibits a fine radial striation. Numerous retracted pseudopodia, bearing red granules, arise from the sarcomatrix and pierce the calymma radially. The interval between the two concentric shells is filled up by the hyaline calymma.
Fig. 2. Lychnosphæra regina, n. sp.,×400[277]
A part of the cortical shell, with a radial spine.
Fig. 3. Lychnosphæra regina, n. sp.,×400[277]
The medullary shell and the basal parts of the radial spines arising from it.
Fig. 4. Lychnosphæra regina, n. sp.,×400[277]
Distal end of a radial spine.
Fig. 5. Rhizoplegma lychnosphæra, n. sp.,×200[276]
The central capsule and the enclosed parts of the skeleton. The protoplasm is radially striped. The central nucleus (red) sends out numerous radial apophyses, which are protruded through the pores of the medullary shell.

PLATE 11.
Astrosphærida.
Diam.Page.

Fig. 1. Lychnosphæra regina, n. sp.,

×200[277]
The entire shell and the central capsule. Numerous club-shaped radial apophyses or cœcal sacs arise from the pink central capsule and are protruded through the pores of the medullary shell, which is completely hidden by them. The sarcomatrix in the calymma, surrounding the central capsule, exhibits a fine radial striation. Numerous retracted pseudopodia, bearing red granules, arise from the sarcomatrix and pierce the calymma radially. The interval between the two concentric shells is filled up by the hyaline calymma.
Fig. 2. Lychnosphæra regina, n. sp.,×400[277]
A part of the cortical shell, with a radial spine.
Fig. 3. Lychnosphæra regina, n. sp.,×400[277]
The medullary shell and the basal parts of the radial spines arising from it.
Fig. 4. Lychnosphæra regina, n. sp.,×400[277]
Distal end of a radial spine.
Fig. 5. Rhizoplegma lychnosphæra, n. sp.,×200[276]
The central capsule and the enclosed parts of the skeleton. The protoplasm is radially striped. The central nucleus (red) sends out numerous radial apophyses, which are protruded through the pores of the medullary shell.

PLATE 12.

Legion SPUMELLARIA.