1896.1 Crkighton. — Notes on collecting Enfomostraca. 91 



the Birmingham N. H. Society in February, 1895, Mr. Hodg- 

 son gives a list of 64 British species, of which 31 have been 

 found within 15 miles of Birmingham. In all probability the 

 whole 64, if not more, are to be found in Ireland. 



Mr. J. D. Scourfield has given me great aid by kindly 

 naming some of the more difficult species for me. Where no 

 reference follows a locality in this list, the species has been 

 taken there by myself 



IRIvSH CIvADOCERA. 



Sida crystallina, O. F. Muller. This is by far the most widely dis- 

 tributed and abundant Kntomostracan in the lakes and ponds of 

 the N. of Ireland; I have found it in all I have examined except those 

 which are liable to be completely dried up in hot weather. My 

 experience is thus directly opposed to Baird's observations in England, 

 viz : — " They do not seem to be numerous in the localities in which I 

 have found them, and indeed are of rare occurrence." (t) : Scourfield 

 has recently confirmed Baird's statement in researches conducted at 

 Wanstead Park (2) and in Wales (3), Irish localities are L. Corrib (4), 

 L. Erne (5), L. Melvin, lakes of Donegal, and near Galway (6). 



Daphnia pulex, Muller. Common in small ponds, ditches, and 

 wells ; also near the shore in lakes ; L. Erne (5), Donegal, &c. 



D. long-ispina, Muller. Near Galway (6); lakes of Fermanagh and 

 Donegal. 



D. obtusa, Kurz. Common in a pond in the townland of Dunmuckrim, 

 near Ballj^shannon. 



D. g-aleata, Sars. Only in Iv. Erne (5) and L. Melvin in this locality: 

 near Galway (6). 



Ceriodaphnia reticulata, Jurine. Scarce. L. Unshin, near Bally- 

 shannon. 



C. pulchella, Sars. Mr, Scourfield kindly identified this species for 

 me; it resembles C. qtmdrajtgtila, JMiiller, very closely. I have found 

 it only in L^. Nabrackalan, near Ballj^shannon. 



C. mcgalops, Sars. Near Galway (6). 



Scapholcbcrls mucronata, O. F. Muller. L. Corrib (4). 



Simocephalus vetulus, O. F. IMuller. Common in ponds every- 

 where. 



Bostnina coregoni, Baird. Upper L. Erne (5). 



B. longlrostris, O. F. Muller, Clonhugh Lake, near Mullingar (4). 



B. longispina, Leydig. L. Bollard, Connemara (7). L. Melvin. 



Lathonura recti rostr is, Muller. L. Bollard, Connemara (7). 



lYIacrothrix laticornis, Leydig. Near Belfast, W. Thompson (7). 



lYI. rosea, Jurine. Lakes of Connemara (7). 



AcantholeK)erIs curvirostris, Midler. Bog pools near L. Corrib 

 (4) ; Connemara (7) ; near Columbkille Lake, Ballyshannon. 



Drepanothrix hamata, Sars. L. Bollard, Connemara (7). 



A 2 



