84 THE ZOOLOGIST. 



It should be noted that my observations are limited to a 

 triangle, the base of which extends from Hastings to Pevensey, 

 and the two sides joining those places with Eobertsbridge. 



On the occasion of my last visit to Sussex in August, 1913, I 

 spent an hour in examining the Annelid fauna under moss and 

 liverwort by a bridge over the little stream which flows through 

 the meadows or " brooks," as they are locally called in the 

 picturesque village of Sedlescombe, and here I found some species 

 of Enchytrgeids which had not previously been recorded for 

 Sussex. It may be of interest to note that one of these was 

 Cliamadrilus chlorophilus, Friend (6) . Though first described from 

 material collected in Derbyshire, I found, on looking up my notes, 

 that I had already found it in Sussex, but had not been able to 

 identify it, and so had put my description aside to await fuller 

 light. Thus it happens that Sussex has the honour of giving us 

 one of the first reliable records for this hitherto unknown Annelid. 



These preliminary observations must suffice to prepare the 

 way for the systematic list. The families and genera are for 

 convenience of reference arranged in the order adopted by Prof. 

 Michaelsen (9). Unfortunately there has, up till the present, 

 been no reliable record for either the family JEolosomatidce or 

 Naidida. These contain many species of microscopic worms 

 which inhabit the mud or vegetation of fresh or brackish waters. 

 We begin, therefore, with the Tubijicidce, another family of 

 freshwater worms, but of larger dimensions. 



Tubifioidje. 



Setse of various kinds ; male pore on eleventh or twelfth 

 segment, with spermathecal pore on adjoining segment. Upwards 

 of a dozen known genera. Michaelsen (9), pp. SQseq., 522 seq. 

 The Sussex genera at present on record are limited to three, viz. 

 Limnodrilus, Ilyodrilus, Tubifex. I believe Scenuris, Clitellio, 

 and Psammoryctes might be found if carefully sought. Rhyaco- 

 drilus also, which I have shown (4) to be more nearly related to 

 the Tubificidee than the Naidida, is found in Essex, and should 

 occur under similar conditions in Sussex. 



1. Limnodrilus hoffmeisteri, Clap. — Michaelsen (9), p. 43. 

 Alexandra Park, Hastings, June, 1912. Not uncommon in the 

 county by streams and in pools. 



