8o The Irish Naturalist. February, 



occurred on segments 16, 17, 23-34. They were especially large on seg- 

 ments 33 and 34, occupying the whole ventral surface, and fairly large 

 on segments 24 and 30. The girdle of this specimen occupied segments 

 25-32. The tubercula pubertatis were also ver}- variable. In some cases 

 they were divided by the intersegmental furrows, in others they were 

 continuous. 

 Distribution. — Europe, North America. 



Helodrilus (Dendrobaena) mammalis (Saw). 



1893 Allolobophora {Dendrobcena) celtica (Rosa), Friend, Irish Naturalist, 

 p. 219. 



1893. Allolobophora celtica, var. rosea, Friend, Irish Naturalist, p. 220. 

 1900. Michaelsen, "Tierreich," p. 493. 

 This worm is very common in Ireland. 

 Distribution. — British Isles,- France. 



Octolasium Iacteum, Orley. 



1893. Allolobophora profuga, Rosa. Friend, Irish Naturalist, vol. ii., 

 p. 121. 



1900. Michaelsen, "Tierreich," p. 506. 



This species seems to be fairly common in the British Isles. 



Distribution. — Central and South Europe, North Africa, &c. 



Lumbricus rubellus, Hoff. 



TS93. Friend, Irish Naturalist, vol. ii., p. 8. 

 1900. Michaelsen, "Tierreich," vol. x., p. 509. 

 This is the commonest Earthworm in Ireland. 

 Distribution. — Europe, Asia, North America. 



Lutnbricus castaneus (Sav.). 



1893. lutnbricus purpureas (Bisen). Friend, Irish Naturalist, vol. ii., 

 p. 8. 



1900. Michaelsen, "Tierreich," vol. x., p. 510. 

 Very common in Ireland. 

 Distribution. — Europe, North America. 



Lutnbricus terrestris, I,. 



1856. Thompson, " Nat. Hist, of Ireland," vol. iv., p. 428. 



1900. Michaelsen, "Tierreich," p. 511. 



This species, though known as the " Common Earthworm," is not by 

 any means so common as many others. Two specimens were obtained 

 on Lambay. One of these had large ventral papillae on segments 31-38. 



Distribution. — Europe, North America. 



