Mr Rogers is above all that nonsense.
Skim-reading and catching "The ingestion by osmosis was usurped by an eating mouth, located in the back underside of the sac, and an anus, located directly beneath the mouth" I had a Glittersnatch flashback.
Many thanks EOT!
It's like a glimpse inside a really messed up head.
I'm thinking of doing some PDer portraits soon.