RESEARCHES AMONG ANNELIDS. 
Rev. HILDERIC FRIEND, 
Ocker Hill, Tipton, Staffordshire. 
1.—A New YORKSHIRE Worm. 
Fridericia striata (Lev.). During a flying visit to. Bradford 
in January, I took the opportunity to spend a few minutes at 
Apperley, where, in former years, I had frequently observed 
a large variety of terrestrial and aquatic annelids. The season 
of the year was unfavourable, as most of the worms had gone 
into winter quarters, but I was able not only to obtain some 
specimens of the true Tubifex (7ubzfex rivulorum Lam.), but also 
to identify a new British species of white worm. This proves to 
be the striate Enchytreid Fridericia striata (Lev.), first described 
in 1883 by Levinsen under the name Enchytreus ioc and 
placed under Fridericia by Michaelsen in 1889. It was then 
Germany. In 1896, however, Dr. H. Ude, of Hanover, published 
an account of some worms collected by Dr. Michaelsen during his 
foreign travels, and among them he found sundry specimens which 
he did not hesitate to place under this heading. They were from 
three different stations in Monte Video, and from Lota, in South 
America. It would be strange, therefore, if the worm were 
absent from the British fauna. e worm is about 3 inch in 
length, of a dull, somewhat opaque grey colour, but showing 
a pure opaque white where the eggs are located in the neigh- 
bourhood of the girdle. segments. There are 45 to 50 segments 
in the body, and the sete are in four bundles, each of which 
consists of six to eight bristles. They are arranged according 
to the usual pattern in this genus. I have not detected any 
chlorophyll bodies in the skin, but in the front segments there 
are vacuoles arranged in irregular rows, usually three in each 
segment, which might possibly at other seasons of the year 
show a different appearance. Possibly, if Levinsen’s statement 
is accurate, the chlorophyll is accumulated in summer, and 
used up in winter. Should this assumption be correct, we have 
a very interesting new field for research. Chlorophyll does 
occur in Anacheta—a member of ‘the same family. ee 
Beddard’s ‘Monograph of Oligocheta,’ p. 354. One of the most 
Striking features, so far as I have ‘ae observed, is the enlarge- 
ment of the intestine in segmen so as to give it the 
? aretha of a erga I regret t that, pea I have several 
