Brown tree frogs (Litoria ewingii), Southern Bell frog (Litoria raniformis), Golden Bell frog (Litoria aurea), axolotls (Ambystoma tigrinum), Fire-bellied newts (Cynops pyrrhogatser and Cynops orientalis). It is against the law to keep any of the native frogs. There are a few people in New Zealand who are allowed to keep native frogs, but these people are native frog specialists who DOC has given a permit to.
You must not release axolotls or newts into the wild, as they are not found naturally in New Zealand and could cause big environmental problems if they become wild. Also, it is important not to let any pet frogs or tadpoles back into the wild, because they can spread diseases that they may have picked up in captivity to other wild frogs.