304. PERCY SLADEN TRUST EXPEDITION, 
arrangement on different parts of the corallum. On the basal part they are frequently 
much worn down, while at the top, being ina state of growth, they are as a rule smaller. 
Those described for the following species have been taken from the middle parts of the 
stem, where they were found to be more constant. 
Hight species of this genus were obtained as follows :— 
1. Stichopathes echinulata, Brook. (Fig. 1.) 
A straight stem, 60 em. long, lacking the basal attachment. 
The polyps are flat with long digitiform tentacles, they are 1 mm. in diameter and are 
placed about 1 mm. apart from one another, except where young polyps are intercalated. 
The spines (fig. 1) are conical, rather compressed, moderately sharp, and in parts point 
slightly upwards. Their average size is 0°2 mm. and they are rather larger on one 
side. The arrangement is in 12-14 steep spirals. 
Locality. Seychelles, F 3, 39 fathoms. 
2. Stichopathes papillosa, Thomson & Simpson, var. 
A stout, loosely wound, sinistral spiral axis, which tapers only very slightly except just 
at the tip, where it becomes abruptly pointed. Without the base, which is absent, it 
measures 30 cm. in height and 7-8 mm. in diameter. 
The polyps were in a poor state of preservation, but appeared to be large and flat with 
moderately long arms. 
The spines are of two kinds. The larger are conical and somewhat roughened and are 
arranged in 30 not very regular spirals; the smaller are similar in shape but more sharp, 
they are quite minute and are scattered irregularly among the others. Both kinds are 
placed at right angles to the stem. 
Except for the presence of secondary spines this form agrees well with the description 
of S. papillosa, I have thought it best therefore to describe it as a variety of that species. ’ 
Locality. Table Island, Andamans, 15-35 fathoms (‘Investigator ’ Collection). 
