S A TIT. 6. R. B. NEWTON AND IL HOLLAND : 



Figure 1 of Plate III shows such a section cut from our 



Formosan specimen and viewed by reflected light and with a 



black background. Fig. 2 of the same Plate, placed beside it 



for comparison, is a micro-photograph of the same magnification 



from the cut surface of a solid segment of a specimen of Cellepora 



tubiger a Busk, from the English Coralline Crag of Broom Hill, 



Suffolk. It will be observed that in this hitter specimen, in 



several places at the bottom of the cells cut through, there can 



be plainly seen the orbicular orifice of the cell below with its 



sinus in front ; and in other places can be seen the vestiges of 



the avicularia. Not so clearly, but nevertheless far more plainly 



than in the same slide viewed by transmitted light (compare 



Plate II, fig. 2, and Plate III, fig. 1) the main zoœcial 



characters are shown in the section from the Formosan specimen 



(Plate III, fig. 1, and Plate IV). After a careful examination 



of several sections as well as the cut surfaces of our specimen we 



are able to give the " characters " of the species as follows : — 



Zoarium : Massive ; surface mammillate. The base of the 



specimen under description was free. The whole was 



supported by growing around some branched organism 



which became imbedded along the long axis of the 



fossil, and whose place is now occupied by the cores of 



stalagraitic material shown in section in the middle 



portions of Plate IV and of fig. 5 of Plate II. The 



mammillate character of the surface is indicated not 



only by the present exterior aspect of the fossil, which 



might conceivably be due to erosion, but also by the 



lines of growth shown in the horizontal section, Plate II, 



fig. 5. Dimensions of specimens: — Height = 75 millim. 



Base = 75xS0 millim. 



