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occurrence of tlie commoner Sertularians and Flustras in such a 
situation as this, and indeed on the same kind of ground off our 
coast in general. 
The large heap with the foot rule placed against it is Hydrallinania 
J'alcata, and to the right the four smaller heaps in succession are, 1 , 
Sertidia ahietinu ; 2, the Antennularias ; 8, Sertularia JllicuLa ; and 4, 
Thuiaria thuia. To the left is Flustra foliacea, and in front are Halecium 
haleciniim and H. rnuricatum ; the long strands to the right were found 
to belong to the Hydrallinania group also. Other species were poorly 
represented, but there were as usual Polyzoan and Sertularian mess- 
mates, attached especially to Hydrallinania and S. abietina, and in 
the case of the former there also were several clusters of the eggs of 
Montagu’s Sucker. 
