Southern — Monograph of the British and Irish Oligochceta. 178 



Helodrilus (D.) mammalis (Sav.). 



1892. A. [D.) celtica, Eosa, Friend in Journ. Linn. Soc, xxiv., p. 297. 



1893. A. {D.) c, Friend in Irish Nat., p. 219. 



1893. A. {D.) c, var. rosea, Friend in Irish Nat., p. 220. 



1897. A. m , Friend in Zoologist, p. 458. 



1900. H. {D.) m., Michaelsen in Tierreich, p. 493. 



1907. H. [D.) VI., Southern in Irish Nat., xvi., p. 80. 



Habitat — Ireland. Cos. Kerry, Wicklow, Dublin, Down, Donegal. 



Scotland. Edinburgh; Paisley (Friend in MSS.). 



Wales. Bangor (Friend in mss.). 

 Distribution — British Isles ; France. 



Helodrilus (D.) octaedrus (Sav.). 



1892. A. (D.) hoeehii Eisen, Friend in Journ. Linn. Soc, xxiv., p, 298. 



1897. ^. />., Friend in Zoologist, p. 458. . 



1900. H. [D.) 0., Michaelsen in Tierreich, x., p. 494. 



Typical specimens of this species are common in the North of Ireland. On 

 the west coast, and in Co. Kerry, a well-marked variety occurs, distinguished 

 by very prominent glands at the male pores. There are also papillje on the 

 16th segment, and the segments are more clearly defined than in the typical 

 form. One specimen from. Co. Kerry was 70 mm. long, the usual length 

 being 25 40 mm. The clitellum in all specimens stretched over segments 

 29-33, without exception. 



Habitat — Ireland. Co. Kerry (Glencar ; Carrantuohal, &c.) ; Co. Mayo 

 (Clare Island) ; Co. Antrim (Coll. by Mr. Trumbull); 

 Co. Donegal (Milford ; Lough Salt Mountain, etc.). 



Distribution— Englemd ; Scotland ; Europe ; North Asia ; North America, 



Helodrilus (Bimastus) Eiseni (Levins). 



1892. Allolobophora [Dendroba^na) E., Friend in Journ. Linn. Soc, xxiv., 

 p. 302. 



1893. Denclrohcena E., Friend in h^isli Nat., p. 239. 

 1897. Allolobo;phora E., Friend in Zoologist, p. 458. 

 1900. H. (B.) e., Michaelsen in Tierreich, x., p. 503. 



Habitat — Ireland. Cos. Kerry, Wicklow, Dublin, Meatb, Cavan, Donegal. 



Scotland. Midlothian (Eavelrig). 



Wales. Merionethshire (Barmouth). 



Isle of Man. Snajfell summit (2,000 feet). 

 Distribution— Biitish Isles; West and South-west Europe, from Denmark 

 to Portugal. 



