Note 25 — Chapter IV · THE MORPHOLOGICAL COMPOSITION OF ANIMALS.

In place of those originally here instanced about which there are disputes, I may give an undoubted one described by McIntosh, the Syllis ramosa, a species of chætopod living in hexactinellid sponges from the Arafura Sea, which branches laterally repeatedly so as to extend in all directions through the canals of the sponge. In most cases the buds terminate in oval segments with two long cirri each. But male and female buds were found, provided each with a head, and containing ovaries and testes. Sometimes these sexual buds had become separate from the branched stock.