I903- Kank. — Irish F7'esh-water Entomostaca. 217 



Lynccus rectang^ulus, G.O.S. iAlona redangula, G.O.S.).— Killy- 

 homan, Co. Monaghan. 



L. rostratus, Koch. — Lower L. Brne ; pools at Bragan, Co. Monaghan, 



not rare ; Ballinahinch and Kylemore, Connemara ; Kilmacduagh, 



Co. Clare. 

 Leydigia acanthoccrcoides, Fisch., N. and Brady? Schcedler? 



(no spine at base of claws) — Up. ly. Erne (one) : Killyhoman, Co- 



Monaghan (one). 



Craptoleberis tcstudinaria, Fisch. — Killyhoman, Co. Monaghan, 

 very abundant; Upper L. Erne ; Boyne Canal ; Kilmacduagh and 

 Lisdoonvarna, Co. Clare ; Renvyle and Kylemore, Connemara ; near 

 Galway (vi.); Lough Mask, abundant. 



Alonella excisa, Lillj- — Killyhoman, Co. Monaghan; L. Bresk near 

 Castle Archdale ; Boyne Canal ; Tirlough-na-franca and Lisdoon- 

 varna, Co. Clare ; Kylemore, Renvyle and Clifden lakes, Connemara. 

 (It is questionable whether the true A. exigua, Lillj-, has been taken 

 in Ireland.) 



A. nana, Baird. — Killyhoman, Rossmore, and Bragan, Co. Monaghan, 

 abundant ; Fore Abbey, Co. Meath ; L. Bresk, Co. Fermanagh ; Lis- 

 doonvarna and Kilmacduagh, Co. Clare ; Clifden I/akes, abundant ; 

 Kylemore, Connemara ; near Galway; Lough Mask, abundant. 



Pcratacantha truncata, Mull. — Drumreaske and Kill3'homan, Co. 

 Monaghan ; Kylemore, Renvyle, Ballinahinch and Clifden, Conne- 

 mara ; Lisdoonvarna, Co. Clare, very abundant in lake. A specimen 

 from here with sub-posteal angle of abdomen well rounded and test 

 oval. 



Pleuroxus laevis» G.O.S.— Killyhoman, Co. Monaghan (one) ; pool at 

 Markree Castle, Co. Sligo, very abundant. 



P. trigonellus, Mull.— Rossmore and Bragan, Co. Monaghan; Upper 

 L- Erne, and L. Bresk near Castle Archdale, Co. Fermanagh ; Fore 

 Abbey, Co. INIeath ; Kilmacduagh and Caher-na-glissane L-, Co. 

 Clare ; near Galway (vi.) 



P. uncinatus, Baird— Killyhoman, Co. Monaghan ; Upper L. Erne, 

 not rare. Varieties with straight rostra, and either no teeth at the 

 infero anteal- angle, or else they are very slightly represented. 



P. aduncus, Jurine.-Fermoyle, Co. Kerry (Scourfield). 



Chydorus globosus, Baird.— Brag^an and Glasloiigh, Co. Monaghan ; 

 Upper L. Erne, scarce; Clifden, Connemara; Lisdoonvarna, Co. 

 Clare (shell deeply pitted, and margin heavily ciliated toward inferior 

 posteal angle, very local there). 



C. ovalis, Kurz.— Clifden, Connemara; Lough Gur, County Limerick. 



C. latus, G.O.S. and Daday de Dees.- Apparently the abundant species 

 of Chydorus in the Lisdoonvarna Lake, Co. Clare. 



C. sphoericus, l,\xx\\.-<iC.aclatus, Schoed).-Common everywhere. 



C. It>arbatus, -Rossmore, Bragan, and Killyhoman. Co. Monaghan; 

 Upper L. Erne ; Clifden, Connemara. 



