PLATE 5. 



COLLOSPH^RIDA. 



Diam. Page 

 Fig. 1. Trypanosphcera transformata, n. sp., . . . x 150 111 



A living colony. The centre of the spherical coenobium contains a large 

 alveole, surrounded by a net of surcode. The entire calymma is filled 

 up by smaller, thin-walled alveoles. Its inner part contains numerous 

 small, young, central capsules (each with an oil-globule) without, 

 shells ; in the cortical zone of the calymma lie larger capsules, each of 

 which is enclosed by a fenestrated shell with from two to four or more 

 dentated tubes. Between the radiant pseudopodia very numerous 

 small yellow cells (xanthellse), which are scattered everywhere. 



Fig. 2. TrypanospJmra transformata, n. sp., . . . x 300 111 



A single shell. 



Fig. 3. Trypansophcera coronata, n. sp., ... . x 300 110 



Fig. 4. Trypanosphcera trepanata, n. sp., . . . . x 300 110 



Fig. 5. Odontosphcera monodon, n. sp., . . . . x 300 102 



Fig. 6. Odontosplicera cyrtodon, n. sp., . . . . x 300 102 



Fig. 7. Acrosphcera inflata, n. sp., . . . . x 300 101 



Fig. 8. Mazosphcera hippotis, n. sp., . . . . x 400 108 



Fig. 9. Mazosp/mra lagotis, n. sp., . . . . x 300 108 



Fig. 10. Pharyngosphwa stomodcea, n. sp., . . . . x 400 98 



Fig. 11. Bwscinosphosra invaginata, n. sp., . . . . x 500 99 



Each shell contains numerous larger and smaller crystals. 



Fig. 12. Tribonosphcera centripetalis, n. sp., . . . . x 500 98 



Each shell contains numerous large crystals. 



Fig. 13. Collosphcera polygona, n. sp., . . . . x 200 96 



