WAmeiva ameiva
WAmphisbaena alba
WAmphisbaena fuliginosa
WAquatic coral snake
WBig-headed Amazon River turtle
WBig-scaled blind snake
WBothrops atrox
WBothrops bilineatus
WBothrops brazili
WBothrops taeniatus
WBrown sipo
WBlack caiman
WCuvier's dwarf caiman
WSmooth-fronted caiman
WSpectacled caiman
WCatesby's snail-eater
WChironius scurrulus
WCopeoglossum nigropunctatum
WCorallus hortulana
WCrocodilurus
WCrotalus durissus
WDipsas indica
WDrepanoides
WEmerald tree boa
WErythrolamprus aesculapii
WEunectes deschauenseei
WGold tegu
WImantodes cenchoa
WImantodes lentiferus
WLachesis muta
WMastigodryas boddaerti
WMata mata
WMesoclemmys gibba
WMicrurus hemprichii
WMicrurus lemniscatus
WNeusticurus bicarinatus
WNorthern caiman lizard
WOxybelis fulgidus
WPalusophis bifossatus
WPhilodryas viridissima
WPhrynonax poecilonotus
WPhrynops geoffroanus
WPlica plica
WPseudoboa neuwiedii
WRainbow whiptail
WReticulate worm snake
WRhinobothryum lentiginosum
WSibon nebulatus
WSpot-legged wood turtle
WTantilla melanocephala
WThamnodynastes pallidus
WTropidurus torquatus
WTwist-necked turtle
WVarzea bistriata
WXenodon merremii
WYellow-footed tortoise