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      A proboscis () 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, a proboscis is an elongated nose or snout.


      Etymology


      First attested in English in 1609 from Latin proboscis, the latinisation of the Ancient Greek προβοσκίς (proboskis), which comes from πρό (pro) 'forth, forward, before' + βόσκω (bosko), 'to feed, to nourish'. The plural as derived from the Greek is proboscides, but in English the plural form proboscises occurs frequently.


      Invertebrates


      The most common usage is to refer to the tubular feeding and sucking organ of certain invertebrates such as insects (e.g., moths, butterflies, and mosquitoes), worms (including Acanthocephala, proboscis worms) and gastropod molluscs.


      = Acanthocephala

      =

      The Acanthocephala, the thorny-headed worms or spiny-headed worms, are characterized by the presence of an eversible proboscis, armed with spines, which they use to pierce and hold the gut wall of their host.


      = Lepidoptera mouth parts

      =

      The mouth parts of Lepidoptera (butterflies and moths) mainly consist of the sucking kind; this part is known as the proboscis or 'haustellum'. The proboscis consists of two tubes held together by hooks and separable for cleaning. The proboscis contains muscles for operating. Each tube is inwardly concave, thus forming a central tube up which moisture is sucked. Suction takes place due to the contraction and expansion of a sac in the head. A specific example of the proboscis being used for feeding is in the species Deilephila elpenor. In this species, the moth hovers in front of the flower and extends its long proboscis to attain its food.
      A few Lepidoptera species lack mouth parts and therefore do not feed in the imago. Others, such as the family Micropterigidae, have mouth parts of the chewing kind.
      The study of insect mouthparts was helpful for the understanding of the functional mechanism of the proboscis of butterflies (Lepidoptera) to elucidate the evolution of new form-function. The study of the proboscis of butterflies revealed surprising examples of adaptations to different kinds of fluid food, including nectar, plant sap, tree sap, dung and of adaptations to the use of pollen as complementary food in Heliconius butterflies. An extremely long proboscis appears within different groups of flower-visiting insects, but is relatively rare.


      = Gastropods

      =

      Some evolutionary lineages of gastropods have evolved a proboscis. In gastropods, the proboscis is an elongation of the snout with the ability to retract inside the body; it can be used for feeding, sensing the environment, and in some cases, capturing prey or attaching to hosts. Three major types of proboscises have been identified: pleurembolic (partially retractable), acrembolic (fully retractable), and intraembolic (variable in structure). Acrembolic proboscises are usually found in parasitic gastropods.


      Vertebrates



      The elephant's trunk and the tapir's elongated nose are called "proboscis", as is the snout of the male elephant seal.
      Notable mammals with some form of proboscis are:

      Aardvark
      Anteater
      Elephant
      Elephant shrew
      Hispaniolan solenodon
      Echidna
      Elephant seal
      Leptictidium (extinct)
      Moeritherium (extinct)
      Numbat
      Proboscis monkey
      Saiga antelope
      Members of the tapir family
      The proboscis monkey is named for its enormous nose.
      The human nose is sometimes called a proboscis, especially when large or prominent.


      See also


      Beak – Part of a bird
      Nostril – Nose orifice that enables the entry and exit of air.
      Rostrum (anatomy) – Anatomy term
      Snout – Extended part of an animal's mouth


      References

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    Proboscis Image

    Proboscis Image

    Lexigrams | Proboscis

    Lexigrams | Proboscis

    Proboscis - Alchetron, The Free Social Encyclopedia

    Proboscis - Alchetron, The Free Social Encyclopedia

    PROBOSCIS - English open dictionary

    PROBOSCIS - English open dictionary

    Proboscis | Word Genius

    Proboscis | Word Genius

    Proboscis - Word Daily

    Proboscis - Word Daily

    Proboscis - Wikipedia

    Proboscis - Wikipedia

    Proboscis - A-Z Animals

    Proboscis - A-Z Animals

    Proboscis - A-Z Animals

    Proboscis - A-Z Animals

    Proboscis | Word Genius

    Proboscis | Word Genius

    Proboscis Definition and Examples - Biology Online Dictionary

    Proboscis Definition and Examples - Biology Online Dictionary

    Proboscis Definition and Examples - Biology Online Dictionary

    Proboscis Definition and Examples - Biology Online Dictionary

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    Proboscis - Wikipedia

    A proboscis (/ proʊˈbɒsɪs, - kɪs /) 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, a proboscis is an elongated nose or snout.

    Proboscis Definition & Meaning - Merriam-Webster

    The meaning of PROBOSCIS is the trunk of an elephant; also : any long flexible snout.

    Proboscis Crossword Clue - Wordplays.com

    The Crossword Solver found 30 answers to "Proboscis", 5 letters crossword clue. The Crossword Solver finds answers to classic crosswords and cryptic crossword puzzles. Enter the length or pattern for better results. Click the answer to find similar crossword clues.

    Proboscis Definition and Examples - Biology Online Dictionary

    Jun 24, 2021 · A proboscis refers to an elongated or projecting appendage in the head region of certain animals. In invertebrates, such as certain insects , annelids, mollusks, and ribbon worms, the proboscis is a hollow tubular cephalic appendage.

    PROBOSCIS | definition in the Cambridge English Dictionary

    PROBOSCIS meaning: 1. the long nose of some animals, or the long tube-like mouth of some insects: 2. the long nose of…. Learn more.

    Proboscis - A-Z Animals

    May 27, 2024 · A proboscis is an elongated appendage from the face or head of an invertebrate or vertebrate animal. It is typically either a long nose or mouthpart used for feeding. The word “proboscis” is Ancient Greek for “before” and “to nourish.”

    PROBOSCIS | English meaning - Cambridge Dictionary

    PROBOSCIS definition: 1. the long nose of some animals, or the long tube-like mouth of some insects: 2. the long nose of…. Learn more.

    Bug Word of the Day: Proboscis - UF/IFAS Entomology and …

    Apr 5, 2018 · A proboscis is simply a long appendage coming out of an animal’s head, and is used to describe the nose or snout of a vertebrate, like an elephant, or the mouth of an insect, like a butterfly. In insects, the proboscis is an elongated, tubular …

    PROBOSCIS Definition & Meaning - Dictionary.com

    Also called beak. the elongate, protruding mouth parts of certain insects, adapted for sucking or piercing. any of various elongate feeding, defensive, or sensory organs of the oral region, as in …

    What Is a Proboscis? - Spiegato

    The term proboscis refers to the nose of an animal, vertebrate or invertebrate, that is long and elongated. The word is in Latin format, tracing its origin to the combination of two Greek words: pro and bosko. The former means “before” or “forward,” while the latter means “to feed” or …