556 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.54. 



Microxea slightly curved in an S-like manner. Its thinner end 

 sliarply pointed, the broader end forming a more or less sharply 

 pointed head marked off by a nodiform ring. 



Oxea of oscular margin slender, nearly straight. A small example 

 of the spicule measured | mm. or over in length and 4/* in thickness. 



Localities. — Greenland (O. Schmidt, Haeckel) ; off Cape Monati^ 

 Bering Island, Comandorski Islands (Station 4790, 64 fathoms; 

 Station 4792, 72 fathoms) ; off Cape Eollin, Simushir Island, Kuriles 

 (Station 4803, 229 fathoms). 



Remarks. — Of the remaining specimens on hand of the species, 

 1 may call attention to the one from Station 4790, which is shown 

 in plate 85, figure 16. In it the oscular oxea are more numerously 

 present than in the type. They are broadest near the inner end, 

 which is simply sharply pointed; the outer end forms a lance-head 

 similar to that of microxea. They are 0.6-3 mm. or more long and 

 15-20/x thick. 



EXPLANATION OF PLATES. 



Plate 84. 



Fig. 1. Leucosolenia albatrossi, new species. A portion of the type-specimen^ 

 natural size. Station 4788. 



2. Leucosolenia canariensis (Miclalucho-Maclay). Station 4789. Natural 



size. 



3. Leucandra tuba, new species. Tlie type-specimen, natural size. Sta- 



tion 4877. 



4. Leucandra poculiformis, new species. The type-specimen, natural size^ 



Station 4777. 



5. Leucandra foliata, new species. The type-specimen, natural size. Sta- 



tion 4894. 



6. Sycon simushir ensis, new species. The type-specimen. X2. Sta- 



tion 4803. 



7. Heteropia medioarticulata, new species. The type-specimen, natural 



size. Station 5017. 



8. Grantia nipponica, new species. The type-specimen, natural size. Sta- 



tion 4822. 



Plate 85. 



9. Grantia beringiana, new species. The type-specimen, natural size. 



Station 4788. 



10. AchramorpJia diomediae, new species. The type-specimen. X2. Sta- 



tion 4803. 



11. Leucandra kurilensis, new species. The type-specimen, natural size.^ 



Station 4803. 



12. Leucandra splendens, new species.. The type-specimen, natural size^ 



Station 4790. 



13. Leucandra splendens, new species. One of the specimens from Station 



4792, natural size. 



14. Leucandra splendens, new species. A portion of another specimen fron* 



Station 4792, natural size, to show the gastral surface. 



15. Leucopsila stylifera (O. Schmidt). A specimen from Station 4792^ 



natural size. 



16. Leucopsila stylifera (O. Schmidt). A specimen from Station 4790^ 



natural size. 



