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 34, DOI: 10.2994/SAJH-D-19-00120.1, http://zenodo.org/record/10061686

Helicops trivittatus (Gray, 1849) Type locality. “ India?” (in error). Distribution. Endemic to Brazil (Plt. 288A), recorded in eastern Amazonia and its contact areas with Cerrado (Plt. 288A) at low elevations of the Tocantins, Xingu, and Araguaia basins (Plt. 288B). Observed in the field in small streams and wetlands within riparian forest (Cunha and Nascimento, 1993).