Published as part of Nogueira, Cristiano C., Argôlo, Antonio J. S., Arzamendia, Vanesa, Azevedo, Josué A., Barbo, Fausto E., Bérnils, Renato S., Bolochio, Bruna E., Borges-Martins, Marcio, Brasil-Godinho, Marcela, Braz, Henrique, Buononato, Marcus A., Cisneros-Heredia, Diego F., Colli, Guarino R., Costa, Henrique C., Franco, Francisco L., Giraudo, Alejandro, Gonzalez, Rodrigo C., Guedes, Thaís, Hoogmoed, Marinus S., Marques, Otavio A. V., Montingelli, Giovanna G., Passos, Paulo, Prudente, Ana L. C., Rivas, Gilson A., Sanchez, Paola M., Serrano, Filipe C., Silva Jr., Nelson J., Strüssmann, Christine, Vieira-Alencar, João Paulo S., Zaher, Hussam, Sawaya, Ricardo J. & Martins, Marcio, 2019, Atlas of Brazilian Snakes: Verified Point-Locality Maps to Mitigate the Wallacean Shortfall in a Megadiverse Snake Fauna, pp. 1-274 in South American Journal of Herpetology 14 (s 1) on page 32, DOI: 10.2994/SAJH-D-19-00120.1, http://zenodo.org/record/10061686

Phalotris mertensi (Hoge, 1955) Type locality. Serra Azul, state of São Paulo, Brazil. Distribution. Endemic to Brazil (Plt. 268A). Recorded in the southern portion of the Cerrado and its contact with the Atlantic Forest (Plt. 268A), mostly at intermediate to high elevations (Plt. 268B). Observed in the field in seasonal forest, savanna, and disturbed areas (Sawaya et al., 2008; Barros et al., 2017).