ENCHYTR^EID^E 



Nephridia. These organs are covered thickly with small bladder- 

 like elevations to the extent that the inner ducts cannot be followed. 

 There are no special granulations on the main body near the nephro- 

 stome. The inner duct seems to be wide. 



Setae. In the 

 majority of the 

 fascicles, both 

 the ventral and 

 the lateral ones, 

 the setae next to 

 the lateral inter- 

 val are the 

 smallest. In 

 each fascicle the 

 majority of the 

 setae are of 

 about the same 

 length. 



Spermathecce 

 (fig. 50, a). 

 The whole duct, 

 up to the very 

 connection with 

 the intestine, is 

 covered with 

 glandular cells 

 grouped in pap- 

 illae-like bunch- 

 es, giving to the 

 spermatheca an 

 uneven and 

 warty outline. 

 The basal glan- 

 dular collar has, however, a perfectly even outline, and the outline 

 of the various cell-groups do not in the least project exterior to the 

 general margin of the collar. The cells in the collar are somewhat 

 narrower than those in the envelope of the duct. The chamber of the 

 ampulla, which is full of spermatozoa, is entirely confined to the lumen 

 of the duct and does not cause a bulging out as in some other species. 

 Ventral glands. As has been stated in the definition, large ventral 

 glands are found in XIV to XIX. These posterior glands are of about 



FlG. 51. Lumbricillus annulatus. 



