Snakes of Manaus region. ~300 pp., 12 MB
https://ppbio.inpa.gov.br/sites/default/files/guia-cobras-regiaoManaus_PPBio_CENBAM.pdf
Lizards of Alphonse Duke reserve, Central Amazonia. 6 MB
https://ppbio.inpa.gov.br/sites/default/files/Guia_lagartos_ebook.pdf
Frogs of Alphonse Duke reserve, Central Amazonia. ZIP file, 87 MB (book and mpeg videos)
http://ppbio.inpa.gov.br/sites/default/files/guia-sapos-mpeg.zip