298 Friend: New Cumberland Annelids. 
of different sizes, the dorsal pores, salivary glands, and sperma- 
we thecz for guides it is easy to distinguish A7zderzcza from all the 
| other genera in this large family. The worms are white, and 
BS range from about a quarter of an inch to an inch in length. 
x Their function is as yet little understood. I have found none of 
them, hitherto, playing the part of pests, but in every instance ‘ 
they have been feeding on decaying vegetable matter, and thus _ a 
they seem to be specially adapted to act as nature’s scavengers. 
My first addition to our lists is named 
Fridericia agricola Moore. Fortunately, the author’s 
diagnosis and drawings are so clear that there can be no 
hesitation as to the identity. The worm is half-an-inch or more 
parent or hyaline. The girdle extends from the middle of 
segment 11 to the middle of 13, and in the adult the sete on 12 
disappear, and give place to a pair of glands or pores. The 
nerve cord has no swellings or glands, and the brain is convex 
behind. The spermathece have a characteristic shape, and I have 
been very careful to compare these with the drawings supplied by 
Moore. A pair of sacs or diverticula will be found attached to 
the interior base, while the exterior opening is without glands. 
It was first described by Mr. J. P. Moore in Proc. Acad. Nat. Sc. 
Philadelphia, 1895. Plentiful in early spring at Wayne, Delaware 
County, Pennsylvania. Now first recorded for Great Britain, as 
being found by the Eden, Carlisle, January 1808. 
In the same locality and at the same time I found two other 
species of /ridericia described by Moore, and now for the first 
time recorded as British. 
ericia parva Moore is the smallest species yet recorded. 
It is under half-an-inch long, and is made up of 4o to 45_ 
segments. The setz are arranged as in the foregoing, except 
that there are only two pairs in the front bundles. he 
spermathece are simple, devoid of the diverticula which often 
accompany the main sac; the tube being about four times as 
_ long as the pouch, Witibad glands. The salivary glands are not 
branched, but have a bulbous enlargement of the mouth. The 
_ dorsal pores commence as in the a3 alain case in. See nen qe 
prert hig Aad ere as peers. ee sane! 
