8 The Irish Naiuralist. January, 
* 3. Fridericia helvetica, Eretsdier. 
Length 10-12 mm. Segments 42 ; similar to the foregoing in size 
and colour, but with obtuse or bluntly rounded head ; setae 4 per set 
in front, 2 innermost shorter than outer pair ; 2 per bundle behind. 
Adult ; girdle with cells arranged in pretty regular rows, some 35 in num- 
ber. Very long, irregularly curved duct with large pores and atrial 
glands, with funnel about 3x1. The duct ciliated. Girdle extending 
from xii. to \ xiii., as is most usual, dorsal setae present on xii. Coe- 
lomic corpuscles large ; mixed with brown circular cells, which may 
have been chloragogen cells detached from the intestine. Nerve chord 
enlarged in front; brain not observed. Large nephridia in 6/7-10/11, 
with somewhat long duct springing from the middle of the post-septal. 
Two diverticular to the spermathecae. 
This description is in almost exact agreement with that of the species 
found by me at Acresford, near Ashby-de-la-Zouch, July 2nd, 191 1 (2). 
4. Enchylraeus minimus, Bretscher. 
No fewer than ten additional specimens of this liliputian enchytraeid 
found on the occasion of my second examination. It is frequently 
not more than 2 mm. in length, and even the largest specimens do not 
exceed 4 or 5 mm. Though opaque white to the naked eye, the worm 
appears very dark under the microscope. For details and references the 
former report may be consulted. 
* 5. Encliytraeus Bucholzii, Vejdovsky. 
Long known in England, this worm was first reported for Ireland by 
Southern in 1906 {Irish Nat., vol. xv., p. 184). As this species, as well 
as the two which follow, has been the occasion of a good deal of confusion, 
I append a few notes relating to the Poyntzpass specimens. 
Length 10-12 mm. Segments 36. Setae 2-3. Salivary glands rather 
large, with free ends somewhat expanded. Girdle somewhat conspicuous, 
small duct to funnel which is about 2x1. Spermatheca short, stout, 
bottle -shaped, with glands at 4/5 opening. Intestine dark, owing to 
the dark, oily chloragen cells resembling those of E. minimus. Coelomic 
corpuscles many, large, grey. Brain large, varying behind with tension. 
Dorsal vessel arising in the 13th segment, and running forward like a 
white stream amid dark alluvium. Three pairs of septal glands. Ne- 
])hridia in the front segments with large postseptal and duct from the 
middle ; those behind the girdle were elongated. Testes filled segments 
lo-ii. Cells of girdle rather large and irregular, about equal in size 
to the clear spaces. Funnels and spermathecae^ full of spermatozoa. 
t 6. Enchytraeus pellucid us, Friend. 
Quite distinct from the foregoing and the next. Four specimens 
present, fully adult. The very long brown duct, extending back to 
Segment 16, 17, or 18 is a remarkable feature. 
j * New to Poyntzpass List. 
t New to Irish List. 
