The Morphology of the Skeletal Element of Saccoglossus Mereschkowskii (Hemichordata, Enteropneusta)статья
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Дата последнего поиска статьи во внешних источниках: 4 февраля 2014 г.
Аннотация:Enteropneusta is one of two classes amounting to the phylum Hemichordata which specimens are bottom burrowers of marine sediments. Hemichordates present some features which allow to consider them to be a group closely related to ancestors of Chordata. One of such features is development of skeletal formations from connective tissue. Among these structures are gill skeleton and unpaired skeletal element of the stalk joining the collar and the proboscis. The morphology of unpaired skeletal element of relatively not large number of species is studied. This research deals with construction of the skeletal element of Saccoglossus mereschkowskii Wagner, 1885.