PLATE 5. 



CoLLOSPELSERIDA. 



Fig. 1. Trypanosphcera transformata, n. sp., . 



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

 alveole, surrounded by a net of sarcode. 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. Trypanosphcera transformata, n. sp., . 

 A single shell. 



Fig. 3. 



Fig. 4. 



Fig. 5. 

 Fig. 6. 

 Fig. 7. 



Fig. 8. 



Fig. 9. 



Fig. 10. 



Fig. 11. 



Trypansophcera coronata, n. sp., 



Trypanosphcera trepanata, n. sp., 



Odontosphcera monodon, n. sp., 



Odontosphcera cyrtodon, n. sp., 



Acrosphcera inflala, n. sp., 



Mazosphcera hippotis, n. sp., . 



Mazosphcera lagotis, n. sp., 



Pharyngosphcera stomodcea, n. sp., 



Buccinosphcera invaginata, n. sp., 



Each shell contains numerous larger and smaller, crystals. 



Fig. 12. Tribonosphcera centripetalis, n. sp., 



Each shell contains numerous large crystals. 



Diam. 

 x 150 



x 500 



Page 

 111 



x 300 111 



X 



300 



110 



X 



300 



110 



X 



300 



102 



X 



300 



102 



X 



300 



101 



X 



400 



108 



X 



300 



108 



X 



400 



98 



X 



500 



99 



98 



Fig. 13. 



C olio splicer a poly gona, n. sp., . 



x 200 



96 



