68 BRITISH HYDROID ZOOPHYTES. 



small shoots, densely crowded with ovate, 

 alternate receptacles ; features in which, as 

 also in the marked wrinkling, they much 

 resemble the capsules, which, however, are 

 very much larger. Common. 



Sertularella tenella, Aider. 



1 specimen in box on Flustra. 



specimen This specimen appears to combine 

 42. to a great extent, the characters of 

 S. tenella, Aider, and S. fusiformis, Hincks. The 

 stem is very zig-zag, the angles formed being 

 almost right-angles. The receptacles are too 

 short for S. fusiformis, and although appar- 

 ently smooth, in most instances this is pro- 

 bably due to the age of the specimen, as in 

 some specimens they are wrinkled. The rim 

 is four-toothed. The capsules are oval, ribbed, 

 and with dentate apertures, but in many cases 

 they appear plain. It is a pretty little species 

 and nearly allied to S. rugosa. 



Diphasia rosacea, Linnseus. 



2 dry specimens, and 2 specimens in boxes. 



specimens This a most delicate and 



43, 44, 45, 46. elegant species. It is 

 generally found trailing over hydroids and 



