PLATE XIII. 



Figs. 1 and 2. Culeolus perlatus, Suhm. 

 Figs. 3 and 4. Culeolus moseleyi, Herdman. 

 Figs. 5 and 6. Culeolus wyville-thomsoni, Herdman. 

 Figs. 7-10. Fungultis dnereus, n. sp. 



Fig. 1. Part of the peduncle of Culeolus perlatus, showing the brown trabecular ; 



enlarged. 

 Fig. 2. Part of the surface of the test, showing the papillae ; enlarged. 

 Fig. 3. Part of the endostyle of Culeolus moseleyi, showing the spicules (sp.), the clear 



edges (w.e.), and the central opaque area ; magnified (Hartu., obj. 4). 

 Fig. 4. The nerve ganglion of Culeolus moseleyi, and the patch of spicules in the mantle 



over it ; magnified (Hartn.. obj. 4). 

 Fig. 5. A small part of the branchial sac of Culeolus wyville-thomsoni, seen from the 



outside ; magnified (Hartn., obj. 4). 

 Fig. (5. Part of the endostyle of Culeolus wyville-thomsoni, showing the clear edge (w.e.) 



the calcareous spicules (sp.), and the central area of opaque brown bands ; 



magnified (Hartn., obj. 4). 

 Fig. 7. Fungulus dnereus, from the right side ; natural size. 

 Fig. 8. The branchial aperture ; enlarged. 

 Fig. 9. Part of the branchial sac, seen from the inside, showing one of the branchial 



folds (br.f.) ; magnified (Hartn., obj. 4). 

 Fig. 10. Part of the endostyle, showing the clear edges (w.e.), and the central opaque 



area. The left side of the figure shows the sinuses injected with blood 



corpuscles; magnified (Hartn., obj. 4). 



