478 Harorp Hearu, Spengelomenia. 
Fig. 11. Section corresponding to line %, Pl. 24 Fig. 12. Two lobes 
of the pericardium (p) adjoin the aorta; lateral to the stomach-intestine (r) 
are the coelomoducts, the one on the right showing the attachment of the 
seminal receptacle. 50:1. 
Fig. 12. Reconstruction of posterior end of S. bathybia, showing 
pericardium, ganglia and principal nerves, coelomoducts with vesicular 
appendages and sheath of gland cells. The coelomoduct is represented as 
opening on the summit of a large papilla, into the cloaca. 
Plate 25. 
Fig. 13. Spengelomenia bathybia. 5", :1. 
Fig. 14. Section along line F, Pl. 24 Fig. 12, showing small, tubular 
heart, intestine beneath the pericardium and coelomoducts, the dorsal limb 
on right with diverticulum. 
Fig. 15. Pharyngeal glands between brain and radula.. 250:1. 
Fig. 16. Section through cloacal cavity, corresponding to line /, 
Pl. 24 Fig. 12. 
Fig. 17. Portion of radula.. 250:1. 
Fig. 18. Glands from pharynx behind the radula.. 91:1. 
Fig. 19. Section through atrial cavity, corresponding to line 4, 
Pl. 24 Fig. 1. 
Fig. 20. Section through external reproductive opening on summit 
of papilla in cloacal cavity that is surrounded by numerous glands. 
Fig. 21. Section through one of the ventral salivary gland lobules 
and-duer.s 91%}: 
Fig. 22. Blood corpuscles. 555:1. 
