The guanaco is a South American camelid, the wild ancestor of the domestic llama.
The dromedary is the other species of camel beside the Bactrian camel mentioned earlier on this blog.
The alpaca is a domestic camelid from South America.
The vicuña is a wild camelid from South America. The vicuña is the wild ancestor of the domestic alpaca.
The llama is the most well-known South American domestic camelid.
Bactrian Camels are one of the extant two camel species (the dromedary being the other one).