Delphinidae, Gray, 1821

Voss, Robert S. & Fleck, David W., 2017, Mammalian Diversity And Matses Ethnomammalogy In Amazonian Peru Part 2: Xenarthra, Carnivora, Perissodactyla, Artiodactyla, And Sirenia, Bulletin of the American Museum of Natural History 2017 (417), pp. 1-1 : 1-

Cetaceans ( Delphinidae and Iniidae )

The Matses recognize both of the species of dolphins present in the Yavarí-Ucayali interfluve, the gray dolphin ( Sotalia fluviatilis [ Delphinidae ]) and the pink Amazon river dolphin ( Inia geoffrensis [ Iniidae ]). Their general term for dolphin is chishkan, an unanalyzable term that does not occur in other Panoan languages. There are no archaic synonyms or ceremonial terms for dolphins.