PLATE 81. 



Stephanida. 



Archicircus primordialis, n. sp., 

 Zygocircus poly gomes, n. sp., 

 Zygocircus triquetrus, n. sp., 

 Archicircus hexacanthus, n. sp., 

 Zygocircus acacia, n. sp., . 

 Lithocircus crambessa, n. sp., 

 Archicircus rhombus, n. sp., 

 Zygocircus pentagonus, n. sp., 

 Lithocircus quadricornis , n. sp., 

 Dendrocircus arborescens, n. sp., 

 Dendrocircus dodecancistra, n. sp., 

 Archicircus sexangularis, n. sp., 

 Dendrocircus elegans, n. sp., 

 Dendrocircus stalactites, n. sp., 

 Lithocircus decimalis, n. sp., 



Fig. 16. Lithocircus magnificus, n. sp., 



The ovate, red-coloured central capsule exhibits in the lower half the 

 striate podoconus, in the upper half four oil-globules, and at the left 

 the kidney-shaped nucleus. Numerous " yellow cells " or xanthellge 

 are scattered in the calymma, which contains brown pigment around 

 the porochora. Numerous pseudopodia radiate from the supporting 

 spines of the sagittal ring. 



Fig. 



1. 



Fig. 



2. 



Fig- 



3. 



Fig. 



4 



Fig. 



5 



Fig. 



6 



Fig. 



7 



Fig. 



8 



Fig. 



9 



Fig. 



10 



Fig. 



11 



Fig. 



12 



Fig. 



13 



Fig. 



14 



Fig. 



15 





Diam. 



Page 



X 



200 



942 



X 



200 



947 



X 



300 



947 



X 



300 



942 



X 



300 



947 



X 



400 



944 



X 



300 



942 



X 



300 



946 



X 



300 



944 



X 



300 



949 



X 



300 



949 



X 



300 



943 



X 



400 



949 



X 



400 



950 



X 



300 



944 



X 



400 



945 



Fig. 17. 



Lithocircus hexablastus, n. sp., 



x 400 



944 



