The message
from Kay Easton contains these words:

I understood amynthas to mean that in some species the ova wouldn't have
to be fertilised - not totally unreasonable? Don't greenfly do something
similar?

I don't think so. The clitellum passes down the worm - or to be more
exact, the worm squeezes through the clitellum and would collect sperm
from the vesicula seminalis before encapsulating the egg(s), though I
don't know whether it has been observed.

--
Rusty
Open the creaking gate to make a horrid.squeak, then lower the foobar.
http://www.users.zetnet.co.uk/hi-fi/