276 



ERNEST WAKE EN. 



The main stems are nearly black ; they may attain a dia- 

 meter of 1 mm. or more. 



The secondary stems^ which carry the hydranth-bearing 

 branches^ measure about 0"38 mm. in diameter, thickness of 

 perisarc 26'4 fi. 



The diameter of the branches carrying the hydranths is 

 about 0"19 mm., thickness of perisarc 6'1 /i. 



Hydranth. — It has a superficial resemblance to a typical 



Text-fig. 2 



EiidendriuiB angiistuii] sp. ti. 



eudendrium polyp (PI. XLY^ fig. 5) ; there are 25-30 tentacles 

 in a closely -set verticil. 



In the preserved specimen the height of the hydranth from 

 the base to the level of the verticil is about 0-31 nnn., the 

 breadth at the Avidest part 0-29 mm., and the height of the 

 hypostome 0*16 mm. 



Gonosome. — Unknown. 



G-eneral histology. — The general cell-structure of the 

 hydranth is interesting and peculiar ; it differs widely from 

 that seen in E. capillare (cf. figs. 2 and 6, PI. XLV). 



