A proboscis /proʊˈbɒsɪs/ is an elongated appendage from the head of an animal, either a vertebrate or an invertebrate. In invertebrates, the term usually refers to tubular mouthparts used for feeding and sucking. In vertebrates, the term is used to describe an elongated nose or snout.
Read more about Proboscis: Etymology, Invertebrates, Vertebrates