Turns out it is a Rotifer, but still a 'first' to me,so happy days !

Turns out they are Polycelis tenuis ,a common type of pond flatworm living on diatoms and other miniscule prey in the surface film by night . A favourite food source is the floating husks of flies sucked hollow by pond skaters .By day they are mere stationary buds (pic below)

Re this particular weasel , the screenshot was grabbed from a frantic 9 minutes of non stop zoomies as it shot around in a blur through the many mouse and vole burrows which are connected to this main hole . Maybe in sheer joy but more likely to take a mouse or vole by surprise !

Thanks Katty ,seems the longer I study Nature the more the scientific names I know get changed !

2. It almost spanned the full length of the newt and was c. 6cm span.
It retreated into the wall but when the newt moved again, same thing happened . I suspect T. gigantea . Is this likely locally ,or is another tegentaria sp more likely in a rockery/wall ?

1. Hi Katty , re spiders ,just been watching an adult smooth newt hunting very slowly and stealthily atop a drystane wall in the garden (10.15 pm) When it was slowly going down face of the wall it touched a web and a large tegenaria sp shot out of the wall and stopped on top of newt for a moment .

Also got film of one inside a hedgehog house this week !

As winters become milder there is growing evidence of some autumn ones staying to hibernate over winter .

Interestingly, despite being long distance migrants from the Mediterranean , any fresh looking ones seen here in autumn are likely to be newly hatched , from eggs-caterpillars-pupae produced by earlier arrivals .