PLATE XVIII. 



Lumhricillus annulatus sp. nov. 

 Fig. I. Section through the penial bulb. 



Enchytrceus kincaidi sp. nov. 



2. Testis and sperm-sac, the latter projecting into somite x. 



3. Nephridium. It is composed of at least 30 cells. 



4. Sexual bulbs with their papillae, from longitudinal section of the body. 

 The smaller complex is the anterior one. 



Etichytrcetcs metlakatlensis sp. nov. 



5. Nephridium. 



Enchytrceus saxicola sp. nov. 



6. Nephridium. 



(162) 



