39 100 Proceedings of the Royal Irish Academy. 



Oribata cuspidata Michael. 



Clare Island, Achill, and the Westport district. This small and variable 

 species is abundant in the district especially amongst sphagnum on the 

 mountains (Croaghmore and Croaghpatrick). On Achill Island it was found 

 amongst fallen pine needles in September. 



Distribution. — Finland ; Germany ; Sweden ; Italy. 



Oribata Lucasi Nicolet. 



Achill, one specimen found under bark of a fir tree, September. 



This specimen is very small measuring only 374 p in length. Michael 

 gives the average length of this species as 600 ju. A second Irish example 

 which I found on Lambay measures 550 fi. 



Distribution.— -Finland (Nordenskiold) ; Germany (Sellnick) ; Holland, 

 (Oudemans) ; France ; Algeria ; Britain. 



Oribata fusigera Michael. 



Achill, on furze, September ; Croaghpatrick, on sphagnum, October ; 

 Westport, at Coolbareen Lough, on sphagnum. 



Distribution. — England (in moss, Michael. Common amongst sphagnum at 

 Gibside, Hull) ; Scotland (Evans). There is an unrecorded example of this 

 species in the museum collection found some years ago on Lambay off the 

 Dublin coast. 



Oribata parmeliae Michael. 



Common under lichens growing on granite rocks on the sea-shore at 

 Howth, county Dublin. Kecorded by Michael from an exactly similar 

 habitat in Cornwall. 



Scutovertex sculptus Michael. 



The Bill Bocks, 9 miles off Clare Island, in old nests of gulls and puffins, 

 June; Mulranny, abundant under stones on the sandhills in September. 



Distribution.— Germany (Sellnick); England and Algeria (Michael); 

 Scotland (Evans). 



Scutovertex bilineatus Michael. 



Westport, under stones on the sea-shore a little above high-water mark 

 in July. 



Distribution. — Bussia (" in subsaline algae," Oudemans) ; England 

 (" aquatic, on fresh-water algae," Michael). 



