Melanization of the alimentary tract in lizardfishes (Teleostei, Aulopiformes, Synodontidae)

Lev Fishelson, Daniel Golani, Barry Russell, Bella Galil, Menachem Goren

    Research output: Contribution to journalArticle

    Abstract

    Investigating the alimentary tract in several species of lizardfishes (Synodontidae, Teleostei) of the genera Saurida, Synodus and Trachinocephalus, from various sites of their distribution, revealed melanization of the tract wall. This phenomenon was observed in several species of the genus Saurida, but not in the other two genera. This melanization is caused by layers of melanosomes rich in melanin granules and deposited within the connective tissue of the submucosa, between the muscular wall and the muscularis submucosa. From this site this black submucosa extends into the folds of the mucosa. In S. tumbil and S. filamentosa, the entire alimentary tract is black, whereas in S. macrolepis only the stomach is partially or entirely black. This phenomenon and its possible importance are discussed.
    Original languageEnglish
    Pages (from-to)195-200
    Number of pages6
    JournalEnvironmental Biology of Fishes
    Volume95
    Issue number2
    DOIs
    Publication statusPublished - Oct 2012

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