612 Proceedings of the Royal Irish Academy, 



H. brevicoUis, Thorns. 



MUNSTEK. 



Kerry (Killamey, '47 W. 1 ; '76 Bl.). 



The record. Borris ('95 Ht. 8), should refer to S. hrevipalpis, Bedel. 



H. brevipalpis, Bedel. 



TJlstee. CojsrNAtTGHT. Leinstee. Munstek. 

 Common. 



H. arvernicus, Muls. 

 Ulstee. 

 Deny (River Faughan, '00 B.). 



The record, Armagh ('97 J. 2), should refer to H. ceneipennis, 

 Thorns. 



Hydrochus elongatus, Schall. 

 Ulstek. Munstek. 



Down (Lagan Canal near Moira, B.). — Armagh ('88 J. 2). — 

 Limerick (Lough Gur, Ht.). — "Waterford (Dunmore, Wr.). 



H. angustatus, Germ. 



Munstek. 

 Waterford (Dunmore, Wr.). 



Henicooerus exsculptus, Germ. 



TJlstee,. Leinstee. Munstee. 



Derry (Foyle dist., in the River Faughan, '00 B.). — Down (Holy- 

 wood, H. MS.). — Dublin (Loughlinstown brook, H. diary). — Kerry 

 (Killarney, '47 W. 1 ; Park River, KiUarney, Fg. MS.).— Ireland 

 (H. Coll.). 



Octhebius Lejolisi, Muls. 

 Mttnstee. 



"Wicklow (Greystones, '00 Ht. 3). 



Discovered by Mr. G. H. Carpenter in stagnant rock-pools near 

 the coast-guard station, in the beginning of June, 1897. In Great 

 Britain this species is very local, and apparently confined to the south- 

 west — the only records that we have seen are from Devon, Cornwall, 

 and the Scilly Isles. Abroad it has been recorded from the French 

 coast and the Channel Islands. 



