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137 



IRISH CRUSTACEA OSTRACODA. 



BY CANON A. M. NORMAN, M.A., D-CIv, I.lw.D., F.R.S., F.I,.S. 



The object of this paper is to bring together all that is known 

 respecting the representation of the order of Crustacea called 

 Ostracoda in the Irish fauna. 



The great extent of fresh water in Ireland ought to make 

 that country very rich in species of Kntomostraca which are 

 not marine ; but very little has been done among the fresh- 

 water forms, although that little has brought to light species 

 which have hitherto escaped detection elsewhere in the British 

 Isles. It may be hoped that the publication of this list will 

 induce some young naturalists in Ireland to take up this 

 interesting study. 



In recording habitats, I have given my own authority for 

 some habitats where the species has been also found by other 

 observers ; because in thus acting I am giving confirmation to 

 the record of localities already mentioned in Prof. Brady's and 

 my monograph. I have looked through a great deal of material 

 which I had not had time to examine when that monograph was 

 published. This material has been for the most part collected 

 by myself ; but the Youghal sand was given me by my late 

 friend, Dr. Jeffreys ; the Aran sands were collected by the late 

 Mr. George Barlee, and the I^ough Foyle material gathered by 

 the late Mr. Edward Waller. 



The following publications have reference to Irish Ostracoda: 

 and in the monographs are to be found very numerous Irish 

 records, which are embodied in this paper : — 



1. Brady, G. S.— A Monograph of the Recent British Ostracoda. Trans. 



Linn. Soc, vol. xxvi., 1868, p. 353, 



2. Brady, G. S., and D. Robertson. — Notes on a Week's Dredging in 



the West of Ireland. Ann. and Mag. Nat. Hist., ser. 4, vol. iii., 1869, 

 P- 353- 



3. Brady, G. S., and D. Robertson. — Contributions to the study of the 



Entomostraca. VI. On the distribution of the British Ostracoda. 

 An7t. and Mag. Nat. Hist., ser. 4, vol. ix., 1872, p. 48. 



4. MaIvCOMSON, S. M. — Recent Ostracoda of Belfast Lough. Proc. Belfast 



Nat. Field Club, Appendix 1884-1885, p. 259. 



5. MAI.COMSON, S. M.— List of Ostracoda, in Haddon, &c. : First Report 



of the Marine Fauna of the South-west of Ireland. Proc, Roy. Irish 

 Acad., ser. 2, vol iv., 1886, p. 632. 



