NUDIBRANCHIATA OF THE L.M.B.C. DISTRICT. 167 



and its connection with the hepatic ccecum 

 (h.c.) S. h 



Fig. 5. Part of the edge of one of the cerata of C. ruji- 

 hranchiaUs, drawn from the hving specimen, 

 shghtly squeezed, to show the colom's of the 

 hepatic caecum, t/. indicates the generally dis- 

 tributed yellow granules, r. the masses of red pig- 

 ment, and cl. the groups of clear globules. S. h 



Fig. 6. The contents of the hepatic caecum when 

 squeezed out of the living specimen : a, vesicle 

 containing yellow granules ; h, vesicle contain- 

 ing red granules ; c, clear oil-like globules. Z. i. 



Fig. 7. Tip of one of the cerata of C. landshurgi, drawn 

 from the living specimen, showing the superfi- 

 cial zone of opaque white pigment (pg.) sur- 

 rounding the middle of the cnidophorous sac 



{C.S.). S. 1., 



Fig. 8. Apex of cnidophorous sac of C. lamlshurgi, 

 slightly squeezed while alive and emitting 

 cnida {c.) S. ^. 



Fig. 9. Group of cnida of C. landshurgL S. h (the two 

 lower ones enlarged, Z. i). 



Fig.- 10. The subepithelial layer of the integument in 

 surface view, drawn from the living specimen, 

 showing the violet-coloured pigment corpuscles 

 (pg.) to which the colour of the body is due. S. I. 



Plate IX. 

 Figs. 1 to 4. Doto coronata. 

 Figs. 5 to 7. Facelina coronata. 

 Figs. 8 to 10. Facelina drummondi. 

 Fig. 11. Galvina picta. 

 Fig. 12. Cratena viridis. 

 Fig. 1. Transverse section of Doto coronata, near the 



