204 FRANK -E. BEDDARD. 
which was kept continually moist with the “slops” of the 
household. In no other situations were any Oligocheta to 
be found even after or during rain. It seems probable that in 
the dry season they retire deep within the ground or take 
refuge in swampy ground. As to the former suggestion, it is 
only supported by the presence of the worms in moist ground, 
for Mr. Finn informs me that he examined a deep trench in 
the course of its digging, and did not come upon any traces 
of these animals at all. It is possible that the comparative 
rarity of terrestrial Oligochzta in other tropical countries is 
to be accounted for by the fact that they lurk in swamps, and 
only come forth when the ground is thoroughly soaked, and 
fit for them to traverse. On the west coast of Africa the 
earthworms seem to be more purely terrestrial in habit. I 
hear from Mr. Finn that I am indirectly indebted to the 
kindness of General Mathews, principal minister of His High- 
ness the Sultan of Zanzibar, to Mr. Pordage, to Mr. Macalister, 
aud to Mr. Cotterill, for some of the material. To these 
gentlemen I beg to tender my thanks. 
2. Description of New Species. 
Eudriloides Cotterilli, n. sp. (figs. 1, 15, 16, 18—20). 
A considerable number of examples of this species were 
collected by Mr. Cotterill outside a house at Kilindini. I 
have studied the species partly by the section method, and partly 
by dissection, and subsequent examination in glycerine. 
The species is a small one—an inch or so when preserved. 
The specimens were preserved with Perenyi’s fluid and had, 
after preservation, hardly any definable colour, but the paired 
nephridia were very conspicuous as white masses shining 
through the transparent skin. 
The prostomium of the worm is not large, nor does it 
appear to be continued by grooves on to the buccal segment. 
In longitudinal sections the prostomium seemed to be divided 
by a transverse fissure, a character which is known to distin- 
guish Phreoryctes but has not been met with elsewhere in 
