Small carnivores at River Safari would be giant otter (not that small!), jaguarundi, coati and red panda.
Thanks for the reply - have managed to get good photos of all except giant otters which I saw at Chester zoo but didn't get a good opportunity to photograph. Good to know.
Also you might want to catch the feeding trail for a chance to see the off-display Crab-eating Raccoon. You can check with staff at the gate on the timings.
The jaguarundis have bred for the first time and the 2 kittens have recently gone on display. The parents are both grey-brown while one kitten is red phase and the other is dark brown.