222 Guide to Belfast. 



Belfast still remains the only locality in Ireland in which 

 Macrothrix latico)-)iis has occurred. 



The Irish marine species of Ostracoda have been carefully 

 worked out by Brady and Norman/ while the late Dr. 

 Malcomson - has contributed an important paper on the 

 Ostracoda of Belfast Lough. 



Cypridopsis variegala a.nd Li mnky there saficti-patficii — both 

 rare in Ireland — have been discovered in Lough Neagh, 

 while Ca?idona elofigata seems to be quite peculiar to it. 

 The marine Cythere cribrosa, found by Malcomson at Rock- 

 port, Co. Down, in four fathoms of water, has never been taken 

 living anywhere else, though it is known in the fossil state 

 from the coast of Yorkshire. 



Malcomson recorded also a number of very rare 

 species which he dredged near the Maiden lighthouse, off 

 the Antrim coast in deep water, among which we may 

 mention Cythe?-e globulifera and C. diithce, Cythei-idea 

 siibflavescens and Loxoconcha pusilla. Among the species 

 described by the same naturalist, there are two, one of 

 which (Bythocythere pavo) has since been identified as the 

 young of ^. recta; the other (viz., Paradoxof?ia triincatuifi) 

 is, according to Brady and Norman, identical with P. 

 Nor7fia?ii. 



The study of the Copepoda has been somewhat neglected 

 in Ireland. We know that William Thompson took the 

 parasitic Argulus foliaceus off a Salmon Trout at Belfast, and 

 that the freshwater free-swimming forms, Cyclops strenuus 

 and JDiaptomus gracilis., occur in Lough Neagh, and Cyclops 

 cequoreus near Belfast ; but no list of the marine Copepoda 

 of the north-east of Ireland has as yet been published. 



The most noteworthy species, however, which have been 

 taken on the Antrim and Down coasts are Anotnalocera 

 Pattersoni, Ascidicola rosea, Notodelphys Allmani, Scolethrix 

 hibernica, Caligus diaphaftus, Caligus Miilleri and C. rapax 

 (occur also on the poUan in Lough Neagh), Lepeoptheirus 



1 G. S. Brady and A. M. Norman. — Monograph of the Marine and 

 Freshwater Ostracoda of the North Atlantic and of North-Western Europe. 

 Trans. R. Dublin Soc. (Sec. 2), vols, iv and v, 1889-1896. 



23. M. Malcom.son. — Recent Ostracoda of Belfast Lough. Proc. 

 Belfast Naturalists Field Club, 1884-85. 



