146 Proceedings of the Royal Irish Academy. 



It is remarkable that these five species of Diphasia should all have 

 Ijeen obtained only from the one locality. 



8. Sertularia pumila, Linn. 



This, which is one of our most common zoophytes, I have obtained 

 from the material of the expeditions from only one locality, namely, 

 Berehaven, growing on Fucus. Shore collections would, no doubt, 

 yield it in great abundance, 



9. Sertularia operculata, Linn. 



This widely distributed species was dredged from Berehaven, 

 Dursey Sound, and Glandore Harbour. 



10. Sertularia ahietina, Linn. 



It is one of our commonest Sertularians, and was found from 

 Eerehaven, covered with many other zoophytes, from Kenmare River, 

 and from Log 73. 



11. Sertularia argentea, Ellis and Solander. 



Only a small portion of this common species was obtained from 

 Dursey Sound. 



12. Hydrallmania falcata, Linn. 

 Although one of our most abundant zoophytes, no example of it 

 has come under my examination from the dredgings. It is mentioned 

 in the Preliminary Report from Scullane Bay, under Toe Head. 



Family IX. — PLUMULAEnD^. 

 1. Antennularia antennina, Linn. 



Examples of this common species were dredged from Berehaven, 

 Kenmare River, south-west of Ballycotton, and other localities. 



2. Antennularia ramosa, Lamarck. 

 A small colony was obtained only from Berehaven. 



3. Aglaophenia pluma, Linn. 



Colonies of this species were dredged from Station I., forty miles 

 off the south-west of Ireland; also from the south-west of Great 

 Skellig, and from Berehaven. It is mentioned by Mr. W. Thomson 

 from around our coasts ; and a delicate variety, dichotomously 

 branched, is recorded by J. V. Thompson from Cork Bay. 



