(goer) 
NOTES ON BRITISH ANNELIDS. 
By Rev. Hiwperic FRIEND. 
I. DisrripuTion oF TUBIFEX. 
In nearly all old lists in which records are found we meet the 
two entries, Lumbricus terrestris and Tubifex rivulorum. Under 
these two names were included respectively all the common 
species of Harthworm, and all the usual bloodworms of ponds, 
ditches, and streams. As the old Lumbricus group has been 
worked out, new genera and species have been differentiated, so 
that to-day it would be inadmissible to make an all-round entry 
under this heading; similarly with T'ubifex. Much has been 
done of late years by a few English specialists, and more by 
continental workers, to extend our knowledge and analyse results. 
The term Tubifex is now used not only in a generic sense, but 
has been raised to the rank of a family, under which nearly twenty 
well-defined genera are grouped. The difficulty at present is to 
know to what genus or species the old records are to be assigned. 
Evidently the only way to settle the matter is by making an 
accurate entry every time any one or other of the T'ubificide is 
found. Having examined a good many specimens from various 
parts of England and Ireland, I think it may be well to place on 
record here the localities and species about which no question can 
exist. Ido not profess to give a complete list of all the species 
_ I have myself examined, nor do I include habitats recorded by 
Benham and others; but simply put down a few indisputable 
items as a nucleus around which further records may gather as 
research extends. I have undoubted records from the following 
places of— 
1. Tubifex rivulorum, Lam.—Gasworks, Idle, near Bradford, 
and banks of Aire around Apperley, Yorks; dykes at Pevensey 
and ditches at Dallington, Sussex; banks of Derwent and muddy 
backwaters around Cockermouth, Cumberland; Ocker Hill, 
Tipton, Staffs. 
