302 



Dr. T. Goodcy on the 



The anterior end is truncated as in A. hdxvigii (Man), not 

 rounded f\9\\\ A. aceti, and the mouth-apertnre is wide, not 

 very narrow as in A. aceti. It is surrounded by six rounded 

 lips, and there appear to be i;o oral i)apilla3 such as are found 

 in -4. hidw'ujii. 



Fijr. 1. 



Anyuillula redtviva. Head-end. 

 JJa'./j. = excretory pore ; 7. = intestine ; M. = mo\\\.h; iN'.r. = nerve-ring. 



The mouth leads into a simple buccal cavity, the walls of 

 which appear, in optical section, to bear slight lateral thick- 

 enings. There are no teeth or tooth-like processes as in 

 A. aceii, even when the worms are examined under the oil- 



