within the genus uendronephthya. 47 



Anthocodial Grade and Formula : — 



III. = (1-6) P + Cr + very strong S.B. 

 Descriptive Notes : — 



1. Colony as a whole. Two handsome orange- coloured colonies, 

 the largest 28 cm. wide and 20 cm. high, eight others smaller 

 ill size. 



2. Branching. Markedl_y glomerate. Tiie numerous rounded, 

 polyp-bearing, boss-like masses predominate over the stem and 

 main branches. Therefore the colonies must be included in 

 Kiikenthal's hempriclii group. The lowest branches of the colony 

 show slight foliation. 



3. Colouring. Generally deep orange-coloured polyps and 

 white cortex. The colony from station 240, however, showed 

 quite a. difiereut colour-scheme, viz. bright red spindles in the 

 supporting bundle and anthocodise, bat the general cortex greyish 

 with opaque, white, almost porcella,nous spindles. 



4. Polyp stalks and their spictUes. Short, under 1 mm. 



5. Foli/ps. Densely arranged in very characteristic plump hemi- 

 spherical masses of 7 or so. 



6. Polyp spicules. ' The anthocodial arcliitecture without enter- 

 ing into details, may be noted as having the 8 points often elon- 

 gated with the tips meeting above the polyp. Another feature 

 is the practical absence of any true crown. Kiikenthal notes in 

 his definition of D. yigantea that each of the 8 points has 5-6 

 pairs of spicules, the uppermost much larger than the others and 

 ma.rkedly projecting. It is easy enough to find on the specimens 

 anthocodise which exactl}' correspond with this description. 



Text-fig. 8. Text-fig. 9. 



D. gigantea Verr. D. gigantea Verr. 



Yet on the same colony may be found points with 5, 4, 3, or 

 2 pairs, and finally even a single pair, abutting a,gainst a few 

 transitional small spindles leading on to the supporting bundle. 



Great care was taken to avoid damaged or disturbed antho- 

 codiae, and the annexed diagrams show a series of frequently 

 recurring types of architecture. 



A general feature may be noted that in the great majority of 

 cases the two uppermost predominate, and that when the number 



