CENTROPYGUS JOSEENSIS 249 



Text-fig. 4. 



Diagram of Centropygus joseensis showing the annuli 

 and their relation to the nerve ganglia, the somite limits, the 

 alimentary reproductive and nephridial systems as seen from the 

 dorsal surface of a dissected specimen. Ne.gn., nervia ganglia 

 and somite limits. Nph.p. 3, nephridiopore 3, &c. Nph.p. 19, 

 nephridiopore 19. Oes., oesophagus, ^.gr., anterior gut. A.vi.g., 

 anterior portion of mid-gut. M.g., mid-gut. E.g., hind-gut. 

 E.g., blind pouch of anterior portion of mid-gut. Sph.^, &c., 

 sphincters of anterior part of mid-gut. T.^, testes, first pair. 

 31, 32, male opening. 33, 34, female opening. 



Text-fig. 5. 



Diagram of the reproductive system of Centropygus 

 joseensis as seen from the dorsal surface of a dissected speci- 

 men. T.j, first pair of testes, &c. V.d., vas deferens. V.sem., 

 vesicula seminalis. D.ej., ejaculatory canal. D.ej.t,, terminal 

 portion of ejaculatory canal. Sp.s., spermatophore sac. Ov., 

 ovary. 11, 12, &c., nerve ganglia. 



S 2 



