78 



ERNEST WAEREN. 



In one of the male colonies examined the filiform tentacles 

 of the polyp8 were distinctly swollen at their extremities ; but 

 there appeared to be no increase in the development of the 

 nematocysts, and I am not inclined to regard the condition as 

 of any special significance. 



The average length of a mature male gonophoreis 0'84 mm. 

 and breadth 0*60 mm. The female gonophores examined were 

 not quite mature^ but it is probable that they are slightly 

 smaller. 



The male gonophore is provided Avith four tentacular knobs 



/ 2 ^■ 



bearing large nematocysts. There is no circular canal. The 

 blind ends of the radial canals are occupied by a gelatinou.s, 

 deeply-staining mass which shows concentric lamination, and 

 is crow^led with irregularly- shaped, somewhat refringent, 

 bodies (text-figure 3, g), which are probably the granules 

 giving the endoderm its scarlet colour during life. The 

 general ectoderm of the radial canals, etc., contains such 

 granules, but they are not present in great abundance. In 

 the distal portion of the radial canals of the female gono- 

 phore there is a special middle strip of swollen cells both 

 in the inner and outer layer of the canal, and here, also, the 

 o'ranules are more abundant than elsewhere. 



