PLATE 32. 
Farrea sp. Station 4631. 
Figures 1-3. 
1.— View of the skeleton-net; magnified 2; phot. Zeiss, anastig. 167 mm. 
2, 3.— The two faces of the skeleton-net of the wall of the tubular sponge; magnifie 
planar 50 mm.: 
2, the dermal face; 
3, the gastral face. 
Euretid. Station 4651. 
Figures 4-6. 
4.— View of the skeleton-net; natural size; phot. Zeiss, anastig. 480/412 mm. 
5, 6.— The two faces of the skeleton-net of the wall of the funnel-shaped sponge; magnifi 
Zeiss, planar 50 mm.: 
5, the inner, concave (gastral?) face; 
6, the outer, convex (dermal?) face. 
Chonelasma sp. Station 3689. 
Figures 7-9. 
7.— View of the skeleton-net; natural size; phot. Zeiss, anastig. 480/412 mm. - 
8, 9.— The two faces of the skeleton-net of the thick, curved, lamellar sponge; magnified ore 
planar 50 mm.: > 
8, the convex (dermal?) face; 
9, the concave (gastral?) face. _ < 
, 
Caulophacid. Station 3689. 
Figures 10-12. 
10.— View of the skeleton-net; natural size; phot. Zeiss, anastig. 480/412 mm. 
11, 12.— The two faces of the skeleton-net of the wall of the tubular specimen; aed 
Zeiss, planar 50 mm.: 
11, the inner, concave (gastral?) face; 
12, the outer, convex (dermal?) face. 
Hexactinella sp. Station 4631. 
Figures 13-15. 
13.— View of the skeleton-net; natural size; phot. Zeiss, anastig. 480/412 mm. 
14, 15.— The two faces of the skeleton-net of the thick-walled, funnel-shaped sponge; ma gnii ‘fi 
phot. Zeiss, planar 50 mm.; ; 
14, the outer, convex face; 
15, the inner, concave face. 
