28, 29.— Radial section through the marginal part of the body of specimen C; magnified 10; phot. 
PLATE 8. 
Caulophacus schulzei Witson. 
Figs. 1, 5, 6, 8-12, 15, 21, 22, 27 — specimen E. a 
Figs. 2-4, 13, 16, 18-20, 24 — specimen B. 
Pigsy (aelii2o epee —specimen D. 
Figs. 14, 28, 29 . —sspecimen C. 
1-7.— Side-views of hypodermal and hypogastral pentactines; magnified 30; phot. Zeiss, ere 
20 mm.: 
i 5, 6, of hypodermal or hypogastral pentactines of specimen H; 
2-4, of hypogastral pentactines of specimen B; 7, of a he oeantel pentactine of specimen D. 
8-12.— Group of spicules from a suimilemneenn on of specimen E; magnified 100; phot. Zeiss, apochr. — 
16, compens. oc. 6: 
8, 9, pinules; 
10, a discohexactine; 
a hemidiscohexaster; 
, a hypodermal or hypogastral pentactine with one lateral ray reduced in length and terminally 
thickened. ae 
13-17.— Hypodermal and hypogastral pentactines and parts of such; magnified 100; phot. Zeiss 
apochr. 16, compens. oc. 6: 
13, the lateral rays of a hypogastral pentactine of specimen B; 
14, the lateral rays of a hypogastral pentactine of specimen C; 
15, part of the lateral rays of a hypodermal or hypogastral pentactine of specimen H; 
16, side-view of the central part of a hypogastral pentactine of specimen B; 
17, side-view of a hypodermal pentactine of specimen D. 
18-27.— Apical views of the lateral rays of pentactines; magnified 30; phot. Zeiss, planar 20 mm.: 
18-20, of hypodermal pentactines of specimen B; 
21, 22, 27, of hypodermal or hypogastral pentactines of specimen E; 
23, of a large hexactine-derivate pentactine of specimen D; 
24, of a large hexactine-derivate pentactine of specimen B; 
25, 26, of hypogastral pentactines of specimen D. 
Zeiss, planar 50 mm.: 
28, stained with magenta; 
29, stained with azur; 
a, gastral face; b, margin of sponge-body; ce, dermal face. 
