158 



faces of the main stalk. The verrucae are rather small and give an undulating' 

 appearance, especially on the secondary branches. They have eight definite 

 triangular oval projections. 



The anthocodial armature consists of a collar of six to eight transverse 

 rows, surmounted by eight " points " composed of two, three or four pairs of 

 spindles arranged " en chevron ". In addition to this there are two or occasion- 

 ally three spindles arranged longitudinally on the aboral surface of the tentacles, 

 and this spiculation is continued into the pinnules. The spicules are similar to 

 those in the last sj^ecimen. 



The colour is yellowish-brown. 



Locality : Andamans. 



C. (1) Several broken portions of what has evidently been a large colony 

 whose height could not have been less than 250 mm. The trunk is over 80 

 mm. in length and is much paler in colour than, the rest of the colony. It has 

 almost certainly been embedded in mud or sand. The whole of the stalk is 

 tubular, and there is a tunnel-like expansion with a corresponding thinning of 

 the wall ; it is considerably flattened in one plane. On the ventral surface it is 

 marked by irregular sinuous ridges and furrows, but on the dorsal surface there 

 is only one median ridge with a central furrow ; this furrow is evidently pro- 

 duced by the collapse of a canal wall. 



The primary branches are hollow and short. The secondaries are elongated 

 and have a distinct furrow on the ventral surface. The polyps are arranged in 

 a single row around the margin of the short tubular primary branches and also 

 in a single row on the lateral surfaces of the elongated, flattened, secondary 

 branches. A few, however, occur on the lateral surfaces of the main stalk 

 mostly also in a single row. The verrucre are distinct and dome-like. The 

 anthocodio! are moderately small and are nearly all withdrawn into the verrucas. 



The general tone of the colony is pinkish, but this is due to the verrucse ; 

 the main portion of the ccenenchyma is brownish. 



C. (2) Several other fragments of a similar nature of a light brown colour 

 occur from the same locality, viz., off Colombo, 26^ fathoms. 



D. A slightly damaged specimen 110 mm. in height and 30 mm. in breadth. 

 The trunk, of which the base is wanting, is 25 mm. long and 5 mm. in diameter. 

 The tubulai' stalk is considerably expanded in several places and reminds one 

 of S. rmiioKd, Hickson. These structures give rise to typical branches which 

 have a ventral furrow. The polyps are sparse and distant ; they are se^iarated 

 in many cases l)y intervals of two nun. or more. They occur mainly on the 

 margins of the branches and the tunnel-like structures, but a few also occur on 

 the lateral surfiices and even on the ventral surface of the main stalk. 



The colour of the colony is creamy white but the verrucce are red. 

 Numerous small fragments of a salmon-pink colour. The primary tubular 



