warts. The following measurements were taken of length and jjreadth in milli- 

 metres : 



0-19x0-05; 0-23x0-05; 0-25x00G; 0-35x004. 

 Locality: Andamans ; 238-290 fathoms. 



Sympodium granulosum, n. sp. 



This species is represented by a single colony, with a thin membranous stolon, 

 granular in appearance and completely surrounding an antipatliarian axis. 



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

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

 squat, rising very little above the level of the general crenenchyma, and are covered 

 by a rough coating of spicules. 



The anthocodise are capable of complete retraction. The tentacles are short, and 

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

 the middle line. The general anthocodial spicules are arranged en chevron. The 

 spicules are spindles or rods, a few flat ovals, and a few quadriradiate 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 follows : 



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



2. Rods, 0-4 X 0-07; 0-35x0-09; 0-3x0-l. 



3. Oval foi-ms, 0-5 X 0-22; 0-37 x 0-2; 0-3 x 0-2. 



4. Quadriradiate and X-marked forms, 0-8 x 0-25; 0-3 x 0-2; 0-14x0'07. 

 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 r5-3-9 mm. in length, and are marked by eight ridges 

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



The spicules of the calyx are arranged with the long axes parallel to the length 

 of the polyp. On the anthocodise the spicules are arranged in a band consisting of 

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



