144 Proceedings of the Royal Irish Academy. 



from British waters, by Canon Norman from the Hebrides, from 

 Shetland by Mr. Barlee, and by Mr. Hincks from Cornwall, and is 

 another of the interesting forms, along with the next species, which 

 has been added to the fauna of Ireland by the dredgings of the 

 Academy. 



4. Cuspidella costata, Hincks. 



This species was found growing on tubes of Tulularia indivisa 

 from Berehaven, obtained in 1885, from a depth of 7 fathoms. It 

 shows very distinctly the three or four segments with the conical 

 operculum. It is a very small and rare form, and has not been 

 mentioned before from Irish waters, and only from two English 

 localities — from Whitby, where it was obtained by Mr. Hincks, and 

 from Plymouth by Mr. Bourne. 



5. Filellurii serpens^ Hassall. 



A number of small colonies were found growing on Sertulcwicn 

 alietina and Diphasia tamarisca from Log 37, Berehaven, and from 

 Log 72, south of Grlandore Harbour. 



Pamily VI. — CoppiNiro^. 



1. Coppinia arcta, Dalyell. 



This is a widely distributed species and was obtained from 8 

 miles S.S."W. of Barlogue, growing on Sertularia ahietina. 



Family VII. — HALEcnn^. 



1 . Halemim halecinum, Linn. 



Colonies of this species wese dredged from Berehaven, and from 

 Log 37, 13 miles south-west of Galley Head. It does not seem to be 

 so abundant on the west of Ireland as the next species. 



2. Halecium leanii, Johnston. 



Fine specimens of this more delicate and gracefiil species were 

 obtained from many localities. From Berehaven colonies with male 

 and female gonophores were got in 1885 and 1886. Also from 

 Bantry Bay, Glandore Harbour, and Log 73. 



