NUDTBEANCHIATA OF THE L.M.B.C. DISTRICT. 165 



Fig. 9. Another of same (60th sect, from posterior end, 

 about three-fourths along body) showing the 

 large epipodial processes (or "cerata") contain- 

 ing glands. S.l. 



Fig. 10. T.S. oi Ancula cristata, showing the large cerata 

 {e.p.) alongside the branchiae {ln\) S.l. Com- 

 pare with fig. 8. 



Fig. 11. T.S. of ^'Egirus panctilucens, showing the row of 

 large lateral papillae {e.p.) representing the epi- 

 podia. S.l. 



Fig. 12. T.S. of Triopa claviyer, showing the lateral cerata 

 and dorsal papillae. S.l. Compare with fig. 11. 



Fig. 13. T.S. of Tritonia pleheia, about middle, showing 

 the branched cerata. S. 1. 



Fig. 14. T.S. of Dendronotus arhorescens, about middle, 

 showing the large branched parieto-cerata, S. 1., 

 reduced. 



Fig. 15. T.S. oi Doto coronata, about middle, showing the 

 large lobed hepato-cerata. S. 1. 



Fig. 16. T.S. of EoUs, showing the clumps of simple 

 hepato-cerata representing epipodia. S.l. 



Plate VII. 



Figs. 1 and 2. Aplijsia p)unctata. 

 Figs. 3 and 4. Polycera quadriUneata. 

 Figs. 5 to 9. Ancula cristata. 



Fig. 1. Section of the edge of the epipodium of Aphjsia 

 punctata to show the glands igl.). S. 1- 



Fig. 2. Section of the mantle edge of Aplysia to show 

 the very numerous large glands opening on the 

 lower surface {gl.) S. |. 



Fig. 3. Vertical section of one of the cerata at the pos- 

 terior end of the epipodial ridge of Polycera 



