Plate 58 



Figs. 1-3. Mastigophora grandicella, new species (p. 414). 



1. Incrusting biserial zoarium, X 20, showing the curious mode of 



branching. 



2. Ovicelled zooecia, X20. 



3. Ancestrular zooecia, X20. 



D. 5217. Anima Sola Island. 

 4-8. Mastigophora pesanseris Smitt, 1873 (p. 412). 



4. Portion of zoarium, with ancestrula, X20. The frontal is very granu- 



lar and the peristomial lip is quite salient. 



5. Another zoarium with ancestrula, X20. The zooecia are almost 



smooth and the avicularia are poriform. 

 D. 5137. Jolo Light, Jolo. 



6. Marginal zooecia, X20. 



D. 5235. Nagubat Island. 



7. Normal zooecia, X20. 



8. Microscopic structure of the frontal, X85. 



D. 5147. Sulade Island. 

 9, 10. Mastigophora baculifera, new species (p. 415). 



9. Incrusting zoarium, X20, with zooecia ornamented with their setiform 



spines. 



D. 5137. Jolo Light, Jolo. 

 10. Another example, X20, with well-developed spines. 

 D. 5144. Jolo Light, Jolo. 



(625) 



