168 Proceedings oj the Royal Irish Academy. 



from the British Isles. This species is confined to the Mediterranean 

 region. Three of the specimens so named by Friend are in the Xational 

 Museum, Dublin. On examination they turned out to be undoubted 

 specimens of Relodriluscaliginosus, one of the commonest Irish earthworms. 

 I had specimens of H. Georgii from Sardinia for comparison. It thus seems 

 probable that Friend was mistaken in his identification, and H. Georgii must 

 be struck off the British List. 



Habitat — Ireland. Cos. Kerry, Cork, Clare, Limerick, Tipperary, 

 ■ - ^ Wicklow, Dublin, Louth, Antrim, and Donegal. 



England. Lancashire (Adlington). 

 . Wales. Merionethshire (Barmouth). 



Distribution — British Isles ; Europe ; Xorth America. 



Helodrilus (A.) caliginosus, var. trapezoides (Ant. Dug.]. 



1893. A. trapezoides, Friend in Irish Nat., p. 122. 



1897. A. t.^ Friend in Zoologist, p. 457- 



Transition forms of all stages are extremely common between this yariety 

 and the type form. It is probable that the differences in the tubercula, 

 by which the two forms are separated, either represent different stages of 

 deyelopment or that the character is very variable. 



Habitat — Ireland. Cos. Kerry, Cork, Limerick, Tipperary, Wicklow, 

 Dublin, Louth, Antrim, and Donegal. 



Wales. Merionethshire (Barmouth.). 



Distribution —^riii&h. Isles ; South EurojDe ; North America. 



Helodrilus (A.) long-us L"de. 



1892. A. lactea, Friend in Naturalist, p. 89. 



1893. A. longa, Friend in Irish Nat., p. 89. _ 



1897. A. terrestris, Sav. = longa Ude, Friend in Zoologist, p. 457. 

 Habitat — Ireland. Cos. Cork, Tipperary, Dublin, Louth, Down, and 

 Donegal. 



England. Lancashire (Adlington). 



Wales. Bangor (Friend in MSS.). 

 Distribution — British Isles ; Europe; North America. 



Helodrilus (A.) chloroticns (Say.). 



1865. Luihbricus viridis, Johnston in Cat. Brit. Non-par. Worms, p. 60. 



1892. A. cambrica, Friend in N'ature, yoI. 46, p. 622. 



1893. - A. chlorotica, Friend in Irish Nat., p. 122. 



