Southern — Monograph of the British and Irish Oligochoeta. 181 



Plate X. 



FIG. 



9. Marionina semifusca (Clap.) : 



A. Bram. 



B. Dorsal view of segments 4-8, showing the five pairs of septal 



glands : 

 a. spermatheca ; b. dorsal vessel. 



c. Terminal portion of sperm-duct, with penial bulb. 



10. LuTiibricillus Evansi n. sp. : 



A. Brain. 



B, Copulatory glands in thirteenth and fourteenth segments, 

 c. Coelomic corpuscles. 



D. Nephridium. 



E. Spermatheca. 



F. Sperm-funnel, greatly contracted. 



11. Luriibricillus fossarum (Tauber) : 



The Brain. 



12. Lumbricillus niger n. sp. : 



A. Peritoneal cells of the intestine, showing dark network of 



pigment. 



B. Coelomic corpuscles, 

 c. Nephridium. 



D. Spermatheca. 



