220 The Irish Nahcralisi. 



separated. Length i to i^ inches, of a dark brown or violaceous colour 

 dorsally, tending to iridescence ; lighter on the ventral side. Clitellum 

 flesh-coloured, dirty yellow or grey, and depending considerably on the 

 habitat, occupying 6 segments (31-36); tiibemtla picbertatis on 33-34- Male 

 pore on segment 15, borne on papillae which extend to segments 14 and 

 16. In adult specimens segments 9, 25, and 26, also have glandular 

 tumidities or papillae. First dorsal pore between 5 and 6. Copulatory 

 setae on segments 31, 32, 35. About 100 segments. 



Synonym: Allolobophora celtica, Rosa, Boll. Mus. Zool. Torino, 1886; 

 A. mammalis, Rosa, 1893, see Rev. dei Lumb. p. 39. 



Distribution in Irbi^and. — Loughlinstown, Co. Dublin (Dr. Scharff); 

 Woodenbridge, Co. Wicklow (Dr. Scharff"); Aghaderg, Co. Down (Rev. 

 H. W. Lett); Holywood, Co. Down (Miss C. M. Patterson); Valencia, 

 Co. Kerry, (Miss Delap); Carrablagh, Lough Swilly (Mr. Hart), etc. 



I have received some very suggestive varieties from Counties Down 

 and Dublin, one of which I have in some of my papers called var. rosea, 

 Friend. I find that this variety is in reality the tree-haunter, while the 

 type is a terrestrial form. Here we have room for fuller investigation, 

 that it may be ascertained to what extent the habitat affects the species. 

 It would be profitable also to endeavour to ascertain something more 

 respecting the question whether these species have adopted the dendro- 

 bcenic mode of life from the terrestrial, or vice versa. 



[2. A. (Dcndrobaena) Ibocckii, Eisen. — This worm has rarely been 

 taken in Great Britain. I have, in fact, up till the present only three abso- 

 lutely reliable records. The species is well-defined, but there has been 

 in the past endless confusion owing to the supposed connection between 

 it and Liunbricus puter, Hoffmeister. Bisen's description is very brief, and 

 I, therefore, describe the species from my own material. 



Prostomium more deeply imbedded in the peristomium than in the 

 last species. Male pore on segment 15, on somewhat prominent papillae. 

 First dorsal pore large, between segments 5 and 6. Girdle of 5 segments 

 normally, covering 29-33, with tubercula pubertatis on 31, 32, -^t^. Anal 

 segment somewhat pear-shaped, Length about i^ inches (Rosa gives 

 25-35 millim. for specimens in spirits). Total number of segments 

 80-100. Colour reddish-brown, with red clitellum and light, flesh-coloured 

 ventral surface. Setae in 8 almost equidistant rows. Although Bisen 

 and many others have regarded Lumbriais puter, Hoffm., as corresponding 

 with this species, my examination of the subject negatives the idea,^ and 

 I have no hesitation in referring Hoffmeister's worm to Bisen's Allolo- 

 bophora siibrnbicitnda — a w^orm which is far more widely distributed than 

 D. boeckii, and one which has been mistaken for the latter by many authors. 

 I regard this species as being without synonyms, and take Bisen's 

 description as the original account of a new species as well as a new 

 genus. This worm is so much like Lninbricus pitrpureus, Bisen, that it 

 might easily pass as a true Lit?nbricus. We may compare also L. /nelibceii-s, 

 Rosa. 



Found in similar haunts to those chosen by the last species, but not 

 yet on record for Ireland, where it ought to occur in the upland districts.] 



* I am glad to find niyvSelf supported in this view bj^ so reliable an 

 authority as Dr. Rosa, of Turin. 



(TO BE continued.) 



