Comparative morphology of the nervous system in three phylactolaemate bryozoans

K.V. Shunkina, O.V. Zaytseva, V.V. Starunov, A.N. Ostrovsky

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23 Scopus citations


Though some elements of the bryozoan nervous system were discovered 180 years ago, few studies of their neuromorphology have been undertaken since that time. As a result the general picture of the bryozoan nervous system structure is incomplete in respect of details and fragmentary in respect of taxonomic coverage. The nervous system of three common European freshwater bryozoans - Cristatella mucedo, Plumatella repens (both with a horseshoe-shaped lophophore) and Fredericella sultana (with a circular lophophore) had numerous differences in the details of the structure but the general neuroarchitecture is similar. The central nervous system of the lophophore consists of the cerebral ganglion, a circumpharyngeal ring and lophophoral nerve tracts (horns) sending numerous nerves to the tentacles. A number of the important details (distal branching of the additional radial nerve, pattern of distribution of nerve cells and neurites in the ganglion, etc.) were described for the first time. The number and position of
Original languageEnglish
Pages (from-to)1-27
JournalFrontiers in Zoology
Issue numberOctober 2015
StatePublished - 2015

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