166 ME. F. E. BEDDARD AND MISS FEDARB ON [Juiie 17, 



measure 3 mm. from mouth to mouth, and their diameter is about 

 5 mm. This is all that we have to say respecting the naked-eye 



Text-fie-. 37. 



N 



Imperfectly duveloped coelomic pouches of Pheretima posthuma. 

 Lettering as in text-fig. 36. 



characteristics of these structures, which do not appear to have 

 been noticed in this genus of earthworms, though we shall point 



