lyO The Irish Naturalist. September, 
genera of indigenous Lumbricidae not included in Lumbricus 
and Allurus (Eiseniella), good work still remains to be done. 
It was a great delight to come across such a species, for 
9xample, as Helodrilus oculatus Hoffmeister. 
This curious annehd has had a rather romantic history. 
First discovered and described in 1845, it was for nearly 
half a century lost to sight, just as Lumhricus festivus was 
till I rediscovered it in Yorkshire. In 1890 Michaelsen 
found Helodrilus and named it Allolobophora Hermanni (^) 
and it was some time before one learned that the two names 
referred to one and the same worm. As time went on it was 
discovered by Mr. Evans near Edinburgh, and by myself 
at Cambridge. In 1908 I found it in Malvern, but though 
it was under observation for two years, an adult was 
never found. Since that time, however it has been collected 
by me in Sussex, by the Thames at Kew, in Epping Forest, 
Oxfordshire, Derbyshire, Notts, and elsewhere, and now its 
most westerly record is Co. Dublin. It occurs in the mud 
by the side of rivers, streams and pools, and extends to 
the shore, often living within the reach of the tide. 
Numerous well-known forms such as the Green Worm 
(A. chlorotica), the Square Tail (Allurus), the Long Worm 
[A . longa), and several species of Eisenia and Dendrobaena 
also occurred. The Brandling (E. foetida) and the Mucous 
Worm (E. mucosa = rosea) were here, with the Gilt-tail, the 
Tree Worm and others. But no fewer than three other 
species of Allolobophora were found which were new to 
Ireland as well as to Great Britain, and possibly one or two 
may prove to be new to science. It is impossible to give 
details here, as the material has yet to be re-examined, 
but there seems not the least reason to doubt that 
A. norvegica is among the number. The proofs will be 
supplied in the next paper. 
Passing from the larger forms it may be remarked that 
among the Enchytraeids, several very interesting things were 
found. While E. albidus Henle proved to be the dominant 
type, E, minimus Bret, was also abundant. This is a very 
tiny species, many specimens not exceeding 2 mm. in length, 
and is not to be confused with E. turicensis Br, of which 
