424 MR. F. E, BEDDARD ON NEW [Apr. 23, 



than the closely paired setae of the lateral pair. The distance 

 between each seta of the ventral pair is fully iive times as great 

 as that which separates the two sette of the lateral pair. The 

 setfe are rather small. On some segments, at any rate, of the 

 clitellum there are no setse present at all. This is certainly the 

 case with segment xiv., where the exact position of the lateral 

 seta between the nephridiopore in front and the ovipore behind 

 could be easily fixed. There is no trace upon the cuticle (which 

 was stripped ofi' and examined) of these setae or of the orifices 

 through which they pi-otrude. In Neimianniella siphonochceta 

 Michaelsen particularly notes that setfe are present* upon the 

 clitellum. Nothing is said upon the matter in the case of other 

 species. The absence of setfe upon the clitellum is Avell known to 

 occiu" in certain species of Pherethna, while other species have them 

 on the clitellum. 



The neplirkliopores are very plainly visible upon the clitellar 

 segments only with the use of a lens ; but they are not thus visible 

 upon the other segments of the body. The reason for this is not 

 wholly, if at all, the turgescence of the clitellar segments, which 

 thus makes the pores obvious. When the cuticle is stripped off 

 it is very distinctly to be noted that the pores themselves are 

 smaller in size iipon the preclitellar than upon the clitellar 

 segments. The difference is very considerable. This can hardly 

 be the result of stretching, and must indicate a larger nephi-idium, 

 or, at least, a larger terminal duct to the nephridium. I observed 

 the fii'st nephridiopore upon the thiixl segment. Michaelsen states 

 (of the species t where he notes the point) that the nephridiopores 

 lie in line with the pair of setfe c d. I found in Neii'^nanniella 

 ruivenzorii a decided relationship to seta c. These pores are, it 

 should be added, near to the anterior dividing-line of their 

 segment. 



The clitelluon of Neumanniella ruioeiizorii is complete all round 

 the body. It is as strongly developed upon the ventral as upon 

 the dorsal side. Its yellow colour contrasts with the rest of the 

 body. The clitellum shows some variation from species to- species 

 of this genus in the fact of being saddle-shaped or as in the 

 present species. It begins upon the xiiith segment, the posterior 

 one-third or so of which is invaded by the clitellar epithelium. 

 At the other extremity it ends upon the xviiith segment, so that 

 the dimensions are as in other species of the genus, and as in the 

 Eudrilidfe generally. I have already remarked upon the apparent 

 absence of setae upon this region of the body ; there are also no 

 traces to be observed externally of penial setas in the neighbourhood 

 of the male generative pore or elsewhere. 



The most anterior of the generative pores is the spermathecal 

 aperture. This is very conspicuous in the middle line and just 

 on the boundary-line of segments xiii. and xiv. It is rather a 

 small orifice, but nevertheless quite evident. There is no modi- 



* Loc. cit. p. 502. 



t N. siphouocJi(eta and iV". tenuis, loc. cit. pp. 502 & 505. 



