NERVOUS SYSTEM OF THE EARTHWORM 151 



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FIG. 60. Anterior part of the worm laid open to show the ventral organs, 

 c.c., Circum-oesophageal commissures; e.g., cerebral ganglia; <fo., dissepiment; 

 /, funnel of nephridium; np, nephridium; o, ovary; od, oviduct; ph, pharynx; 

 />5, prostomium; f.5., seminal receptacle; s.d., sperm duct; s.f., sperm funnel; 

 s.v.L, lateral seminal vesicle; /, testis; v.g. and v.n.c., ventral nerve cord. (From 

 Sedgwick and Wilson.) 



