Random update for anyone interested haha. Trips to Ecuador, Bolivia and 2 trips to Chile helped double my total from 10 years ago. One's I've seen wild in Bold.
1. (Caluromys derbianus) Derby’s woolly opossum
2. (Caluromys lanatus) Western woolly opossum
3. (Caluromys philander) bare-tailed woolly opossum
4. (Metachirus nudicaudatus) Brown Four-eyed Opossum
5. (Philander canus) Common Four-eyed Opossum
6. (Philander melanurus) Dark four-eyed opossum
7. (Philander opossum) gray four-eyed opossum
8. (Chironectes minimus) Yapok 9. (Didelphis albiventris) white-eared opossum
10. (Didelphis aurita) big-eared opossum
11. (Didelphis marsupialis) Common opossum
12. (Didelphis pernigra) Andean white-eared opossum
13. (Didelphis virginiana) Virginia opossum
14. (Marmosa murina) Linnaeus’s mouse opossum 15. (Marmosa zeledoni) Zeledon’s mouse opossum
16. (Marmosops bishopi) Bishop’s Slender Opossum
17. (Marmosops incanus) Gray slender opossum
18. (Monodelphis domestica) Grey short-tailed opossum
19. (Thylamys elegans) Elegant Fat-tailed Mouse Opossum 20. (Dromiciops gliroides) Monito del Monte