My main misses and regrets are as follows.
A guide left me at my hotel after I'd come back from Berenty. A couple I met there went on to the Tsimbazaza Zoo and claimed to see a monkey that had been caught in Madagascar, but didn't know the species. My notes indicate that they may have seen a macaque, but had it been caught in Mauritius or are there macaques in Madagasca?. I regret being unable to see and identify it.
I regret never seeing the hairy-eared dwarf lemur in Paris Vincennes and the fact that the Nocturnal House was closed when I went to Taronga.
I went to a snake farm in Bangkok and kept going back to an enclosure for a 'flying lemur'. When the animal emerged, it was a giant flying squirrel, a very nice animal, but not a flying lemur.
When my family visited London Zoo in the 1960s, we always tended to visit the same exhibits and these did not include the various small mammal houses. My first visit to the Clore Pavilion was too late to see the solenodon, another of my regrets.