South China tiger 
South-western black rhinoceros 
Southern African wildcat 
Southern Amazon red squirrel 
Southern brown bandicoot 
Southern cotton rat 
Southern flying squirrel 
Southern hairy-nosed wombat 
Southern muriqui 
Southern pig-tailed macaque 
Southern plains gray langur 
Southern red-backed vole 
Southern red-fronted brown lemur 
Southern reedbuck 
Southern right whale 
Southern river otter 
Southern tamandua 
Southern viscacha 
Southern white rhinoceros 
Southern Yellow-cheeked Gibbon 
Spectacled bear 
Spectacled flying fox 
Spectral tarsier 
Sperm Whale