Alien Oligoch/&ts in England. By Rev. H. Friend. 151 



and are arranged in four pairs, which are disposed as shown in 

 the illustration (fig. 1, l.s., v.s.). The girdle extends from the 

 13th to the 20th segment, and a pocket lens reveals very slight 



Fig. 1. 



prominences on segments 17, 18, 19 ventrally. Sections show 

 that these are related to the prostates and male pore. The girdle is 

 saddle- shaped, but appears to cover a good part of the ventral 



<7/r 



int.e. 



■sp.s. bu oes.gl oes. 



OS. of ou. 

 XE XIII 



XD XI -^^ X '^ 



Pig. 2. 



IX 



surface in a perfect adult. The illustration (fig. 2, ^t>.),. shows 

 it developed on the dorsal surface only. The shape of the head 

 was not observed in the living worm. Tlie anus is terminal. 



M 2 



