Gymnophiona

Caeciliidae

Caecilia armata Dunn, 1942
Caecilia gracilis Shaw, 1802
Caecilia mertensi Taylor, 1973
Caecilia tentaculata Linnaeus, 1758
Oscaecilia hypereumeces Taylor, 1968

Rhinatrematidae

Rhinatrema bivittatum (Cuvier in Guérin-Méneville, 1829)
Rhinatrema gilbertogili Maciel, Sampaio, Hoogmoed & Schneider, 2018
Rhinatrema ron Wilkinson & Gower, 2010
Rhinatrema uaiuai Maciel, Sampaio, Hoogmoed & Schneider, 2018

Siphonopidae

Brasilotyphlus braziliensis (Dunn, 1945)
Brasilotyphlus dubium Correia, Nunes, Gamble, Maciel, Marques-Souza, Fouquet, Rodrigues & Mott, 2018
Brasilotyphlus guarantanus Maciel, Mott & Hoogmoed, 2009
Luetkenotyphlus brasiliensis (Lütken, 1852)
Microcaecilia butantan Wilkinson, Antoniazzi & Jared, 2015
Microcaecilia rochai Maciel & Hoogmoed, 2011
Microcaecilia marvaleewakeae Maciel & Hoogmoed, 2013
Microcaecilia supernumeraria Taylor, 1969
Microcaecilia taylori Nussbaum and Hoogmoed, 1979
Microcaecilia trombetas Maciel & Hoogmoed, 2011
Mimosiphonops reinhardti Wilkinson & Nussbaum, 1992
Mimosiphonops vermiculatus Taylor, 1968
Siphonops annulatus (Mikan, 1820)
Siphonops hardyi Boulenger, 1888
Siphonops insulanus Ihering, 1911
Siphonops leucoderus Taylor, 1968
Siphonops paulensis Boettger, 1892

Typhlonectidae

Atretochoana eiselti (Taylor, 1968)
Chthonerpeton arii Cascon & Lima-Verde, 1994
Chthonerpeton braestrupi Taylor, 1968
Chthonerpeton exile Nussbaum & Wilkinson, 1987
Chthonerpeton indistinctum (Reinhardt & Lütken, 1862)
Chthonerpeton noctinectes da Silva, Britto-Pereira & Caramaschi, 2003
Chthonerpeton perissodus Nussbaum & Wilkinson 1987
Chthonerpeton tremembe Maciel, Leite, Leite, Leite & Cascon, 2015
Chthonerpeton viviparum Parker & Wettstein, 1929
Nectocaecilia petersii (Boulenger, 1882)
Potomotyphlus kaupii (Berthold, 1859)
Typhlonectes compressicauda (Duméril & Bibron, 1841)