Yes, all of these are regular release except for the three non-standard rarities I mentioned
white mouse - only available at the Speyer exhibition a few years ago as has been mentioned
Deinonychus with yellow claws - a variant, as most were released with unpainted claws
Purple and white cow - from the factory but never in a set, a factory test or production error that escaped to the wider world. Policy is that things like this are destroyed at the factory rather than sold to the public.
At the Zirndorf Funpark there is a feature of large clamshells with water flowing out of them and in the water there are small parts that you can collect. These have mostly been items released only at the Funpark and not in regular sets. They have changed over time
In 2005 they included the animals in this photo, thanks to Nick and Claire for sending them to me

That is where the glow in the dark lobster is from. Also you see a light blue and a brick red lobster, also both unique to this. A few of the other animals are unique to this grouping while others have been released in sets at some point. These are probably available in the secondary market in Europe but very rarely seen in the Americas. There were also pieces of wood and shoes I believe.
When I went in 2011 the Funpark had a different grouping, that was also sold in the shop in a bag with one of each. This photo is that group.

I have no idea if there have been any others at a time between these groups. I suspect not as I remember it being mentioned as an event when the second batch first appeared. If anyone does know of other animals we would all love to hear about them.