warts. The following measurements were i;ikcn of length anil breadth in milli- 

 metres : 



0-19x0-05; 0-23x0-05; 0'25xO'OG; O'SSxO'Ol. 

 Locality: Andaman* ; 238-290 fathoms. 



Sympodium granulosum, n. sp. 



This species is represented l>y :i single colony, with a thin membranous .stolon, 

 granular in appearance and completely surrounding an atitipatharian axis. 



The polyps are grouped in bundles of from 2-9 at irregular intervals, cadi 

 bundle having a rough irregular ball-shaped appearance. The calyces are low and 

 squat, rising very little above the level of the general (n'lienrhyma, and arc covered 

 by a rough coating of spicules. 



The authocodise are capable of complete retraction. The tentacles arc short, and 

 have a band of spicules on the aboral surface, consisting of two rows diverging from 

 the middle line. The general anthocodial spicules are arranged en <7,rr/vm. The 

 spicules are spindles or rods, a few flat ovals, and a few <|iiadriradiatc forms. The 

 spindles and rods may be straight or curved, and all have rough warty protuberances. 

 The spicular measurements, length by breadth in millimetres, are as follow- : 



1. Spindles, 0-8x0-09; 0'5x0'08; 0'15x0'04; 0'08x0'03. 



2. Rods, 0-4x0-07; 0'35x0'09; O'SxO'l. 



3. Oval forms, 0-5x0-22; 0'37x0'2; 0'3x0'2. 



4. Quadriradiate and X-marked forms, 0-8x0-25; 0'3x0'2; 0'14xO-(7. 

 Locality : Station 173 ; 8 35' 45" N., 81 17' 45" E. ; 609 fathoms. 



Sympodium tenue, n. sp. Plate IV. fig. 6. 



To this species are referred two small colonies or fragments which spread over 

 and enclose a number of siliceous sponge spicules. 



The stolon is thin and membranous, granular in appearance, and completely 

 surrounds several of the sponge spicules. 



The' polyps are scattered over the surface, occurring singly, or in twos or threes 

 in close proximity. They consist of a non-retractile calyx and of a retractile 

 portion, the anthocodia. When the anthocodise are completely retracted, the mouth 

 of the calyx shows a number of blunt lobes or teeth. 



The tentacles are of medium length, and have a band of spicules running up 

 the aboral surface. 



The calyces are from rS-3'9 mm. in length, and arc marked by eight ridge- 

 running longitudinally, which are only faintly visible in the more contracted polyps. 



The spicules of the calyx arc Mi-ranged with the long axes parallel to the length 

 of the polyp. On the authocodise the spicules are arranged in a hand consisting of 

 eight inverted Vs, the points of which lie at the bases of the tentacles and project 



