220 The /fish Naturalist. November, 



SOME IRISH ENTOMOSTRACA. 



BY EDWARD POPPLE. 



In January last the Rev. Canon Norman, f.r.s., handed 

 to me some small collections of freshwater Entomostraca, 

 which he had gathered during a visit to Ireland in June, 1900. 

 There were five small tubes from Monaghan, and three from 

 Gal way. On working through them I find twenty -five 

 species of Entomostraca, of which two Harpactids, Cantho- 

 camptus horridus S. Fischer, and Canthocampttis gracilis 

 G. O. Sars are, I believe, new records for Ireland. 



The following is a full list of the species : — 



Cladocera. Copepoda. 



Latona setifera Miiller. Cyclopidae. 



Daphnia hyalina Baird. Cyclops viridis Jurine. 

 Simosa vetula O. F. Mull. bicuspidatus Claus. ■ 



Acroperus harpae Baird. serrulatus Fischer. 



Alonopsis elongata G. O. Sars. ^^ms Sars. 



Lynceus affinis Leydig. phaleratus Koch. 



rostratus Koch. 

 Alonella excisa Fischer. Harpactidae. 



nana Baird Canthocamptus minutus Muller. 

 Pleuroxus trigonellus Miiller. lucidulus Rehberg. 



crassus G. O. Sars. 



Chydorus sphaericus Miiller. 

 barbatus Brady. 



OSTRACODA. 



horridus S. Fischer, 

 gracilis G. O. Sars. 

 pygmaeus G. O. Sars. 



Calanidae. 

 Cyclocypris laevis Miill. . Diaptomus gracilis G. O. Sars. 



The following lists show the localities : — 



CORNACASSA, NEAR MONAGHAN. 



Daphnia hyalina Baird. Cyclops phaleratus Koch. 



Chydorus sphaericus Muller. Canthocamptus horridus S, Fischer. 

 Cyclocypris laevis Miiller. pygmaeus G. O. Sars. 



Cyclops bicuspidatus Claus. 



RossMORE, Co. Monaghan. 



Alonella nana Baird. Canthocamptus minutus Miiller. 



Pleuroxus trigonellus Miiller. gracilis G. O. Sars. 



Chydorus sphaericus Miiller. pygmaeus G. O. Sars. 



