244 Proceedings of the Ro/iul Irish Acude/n//. 



Oligoehaeta of Lambay. Irish Naturalist, 1907, ^'ol. x\i., p. GS. 

 Contributions towards a Monograph of the British and Irish 

 Oligoehaeta. Proc. Koy. Irish Acad., 1909, vol. xxvii., p. 119. 



I shall therefore content myself with enumerating a list of the known 

 species. 



Family TUBIFICIDAE. 



Clitollio arenarius (Miiller). 

 Tubifex Benedcni (Udekem). 

 T. costatus (Clapar^de). 

 T. Thompsoni, Southern. 



Family ENCHYTRAEIDAE. 



Marionina semifusca (L'lapurcde). 

 Lumbricillus litoreus (Hesse). 

 L. verrucosu.s (Clapariidc). 

 L. fossoruni (Tauber). 

 L. Pagcustecheri (llatz.). 

 L. iiiger, Southern. 

 L. Evansi, Southern. 

 Euchyti-aeus albidus, Heulc. 

 E. sabidosus, Soutlicm. 

 E. lobatus, Southern. 



The lust-uamcd species has only l>een found in moss and sea-weed on a 

 clifl' at Howlh, over which fresh water trickled. It is undoubtedly covered 

 with sea-water at certain tides ; but it is diflicidt to say whether tiiis species 

 is really a littoral foiin, as it has not been found elsewhere ; and it wa.s 

 accomi>anied by other worms, some of which aie marine and othei-s fresh- 

 water. 



Clas.s HIRUDINEA. 



Only one species of marine leech has Ijeen found in tliis district. It was 

 recorded in the " Handbook to the Dublin District," 1908, p. 199. 



Pontobdella moricata, L. 



1894. Blanchard. Boll. Mus. Torino, vol. L\, No. 192, p. 20. 



In the National Museum there are two specimens of this leech, taken in 



