230 



The spicules are essentially the same as those of the type specimen, but the 

 thin curved spindles of the crown and the " golf-club " forms of the points, 

 which together form the tentacular operculum, are slightly larger. Among the 

 irregular types it is noteworthy that the folia are more rugose and dentate, and 

 only in a very few cases is there the same distinct thinning off towards the 

 edges. 



Locality : Andamans. 



Previously recorded from the Ceylon Seas, Herdman's Collection {Thomson, 

 1905, p. 178). 



Acamptogorgia ceylonensis, Thomson and Henderson. 

 = Echirummricea csyhnennu, Thomson and Henderson. 



There is, in the Wood-Mason Collection, a small, slightly damaged colony, 

 85 mm. in height and 95 mm. in breadth. The branching is in one plane, and 

 the branches are given off at varying angles. The axis is thin and flexible. 

 The ccenenchyma proper is almost white, but it is supported by large foliaceous 

 spicules. The folire of these project considerably beyond the level of the 

 soft coenenchyma, and produce a very rugose appearance. Each spicule stands 

 out distinctly from the others, and presents its characteristic shape. Some are 

 elongated, some appear tri-radiate, while others are quadri-radiate or star- 

 shaped. Each of these main types shows much variation in form. The 

 verrucie are large and cylindrical. They are almost 1 mm. in height, and about 

 075 mm. in diameter. They are arranged laterally, and are about l-r5 mm. 

 distant on the same side. The characteristic appearance of the cojnenchyma 

 is continued into the verruca,', and the projecting points or folia form a protect- 

 ing armature to the anthocodiai. This general characteristic appearance can be 

 seen even with the naked eye. The following are the chief types of spicules : 

 (1) Simple, warty spindles ; (2) Warty spindles bearing short spinose processes ; 

 (3) Curved and straight warty spindles with foliaceous projections on one side, 

 sometimes confined to the median portion, at other times extending almost the 

 entire length of the spindle ; (4) Irregular, root-like processes, from the union of 

 which arise irregular folia. Most of the folia are smooth, but a few bear warts 

 near the base. The colour of the spicules is light red. The colour of the 

 specimen is dark red. 



Previously recorded from Ceylon. 



Acamptogorgia tenuis, n. sp. 



Plate III. figs. 4 and 8 ; Plate VIII. fig. 7. 



The collection includes a large number of delicate colonies, all about the 

 same size, growing on rock, calcareous algffi, gasteropod shells, sponge or 



