ON NAUTILUS AND SOME OTHER ORGANISMS, 179 
8. Further Remarks, 
(1) Capillaries.—As far as I have been able to observe, 
there seems to be a true capillary system in the free portion 
of the mantle, that is to say, in the pallial duplicature. I 
have previously described the pallial arteries and veins. There 
may be another system of capillaries in the funnel, which has 
Fie. 24.—Photograph of a living specimen of Nautilus pompilius, 
taken by A. Willey at Ralum in 1895. 
an astonishingly rich vascular supply, and at whose base two 
large veins, the infundibular veins, may be observed to 
pass into the vena cava. But I have observed no veins in con- 
nection with the genital organs, and I gathered from micro- 
