78 The Irish Naturalist. February, 



LUIYIBRICIDvE. 



Eleven species and one variety belonging to this family were collected 

 on Ivambay. In the whole Irish fauna, twenty species and three varieties 

 are known. The Lambay Lumbricidae are of interest, chiefly because of 

 the great variability shown by some of the species. Some forms common 

 on the adjacent mainland were not found at all. 



El sen lei la tetraedra (Saw), typica. 



1893. Friend. Allurus tdntdrus, -f A. t. var. obscurus + A. t. var. lu/eus 

 + A Hunts amphisbana + Allurus flavus. Free. Roy. Jr. Acad. (3), vol. ii., 

 p. 462. 



1900. Michaelsen, " Tierreich," p. 471. 



This semi-amphibious Earthworm was found in all places sufficiently 

 damp for it. It is common in Ireland. 



Distribution.— Common in Europe. 



Eisenia foetida (Saw). 



1836 Lumbricus annularis, R. Templeton, Mag. Nat. Hist., vol. ix., 

 P- 234. 



1900. Michaelsen, "Tierreich." p. 475. 



In garden soil, at the castle. 



Distribution.— Common in Europe, Asia, North America. Introduced 

 into various parts of the world. 



Eisenia rosea (Saw'). 



1893. Allolobophora mucosa, Friend, Irish Naturalist, p. 122. 



1900. Michaelsen, "Tierreich," p. 478. 



1900.? Eisenia rosea, var. macedonica (Rosa). Michaelsen, "Tierreich," 



P. 479- 

 The Lambay worms referable to this species vary widely in some of 



their characters. The variety macedonica was first separated from the 

 type form by Rosa (1., p 428), because of the presence of small ventral 

 papillse on segments 26-33, a t the border of the girdle. The Lambay 

 specimens include all intermediate forms, from worms with no papillae 

 at all, to forms with papillae on segments 9-12, 24 and 25, and 27 33. The 

 girdle occupies segments 25.26-^ 32.32. Taking these facts into consider- 

 ation, it does not seem justifiable to regard the form macedonica as a 

 distinct variety. The male pores may be small, and confined to the 15th 

 segment, or large, and slightly overstepping it. The tubercula puber- 

 tals are on segments 29-31. In one specimen they only occupied seg- 

 ments 29-30. 

 Distribution. — Common in Europe, Asia, North America, 



