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Epidermale Collar-Receptoren der Nematoplanidae und Polystyliphoridae (Plathelminthes, Unguiphora)

Epidermal collar receptors of the nematoplanidae and the polystyliphoridae (Plathelminthes, Unguiphora)

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Summary

In the Nematoplanidae and the Polystyliphoridae (Proseriata) a special collar receptor type is found, which differs in two points from the basic pattern of these receptors in the other Proseriata and in the Rhabdocoela: (1) The receptors run between epidermal cells to the surface. (2) In the distal region of the receptor cells an electron-dense cuff is developed. The cuff of these receptors, together with some other features of organisation, is considered to be a synapomorphy of the Nematoplanidae and the Polystyliphoridae, which together form the monophyletic taxon Unguiphora Sopott-Ehlers, 1984.

Zusammenfassung

Für die Nematoplanidae und die Polystyliphoridae (Proseriata) wird ein besonderer Collar-Receptor-Typus beschrieben, der vom Grundmuster der entsprechenden Receptoren der übrigen Proseriata und der Rhabdocoela in zwei Punkten abweicht: (1) Die Receptoren ziehen zwischen Epidermiszellen zur Körperoberfläche. (2) Im distalen Bereich der Receptoren ist im Cytoplasma eine elektronendichte Manschette differenziert. — Zusammen mit anderen Organisationsmerkmalen wird die Manschette dieses Receptor-Typus als Synapomorphie der Nematoplanidae und Polystyliphoridae, des monophyletischen Taxon Unguiphora Sopott-Ehlers, 1984, bewertet.

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Abbreviations

ar :

Ringwurzel

cop :

männliches Begattungsorgan

epc :

Epidermiszelle

ge :

Germar

kc :

Kinocilium

mv :

Mikrovilli

ph :

Pharynx

pro :

Prostatoidorgan

sc :

Stereocilien (modifizierte Mikrovilli)

sd :

septierte Desmosomen

te :

Testes

vi :

Vitellarien

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Authors and Affiliations

  1. II. Zoologisches Institut und Museum der Universität Göttingen, Berliner Str. 28, D-3400, Göttingen, Federal Republic of Germany

    Beate Sopott-Ehlers

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  1. Beate Sopott-Ehlers
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Sopott-Ehlers, B. Epidermale Collar-Receptoren der Nematoplanidae und Polystyliphoridae (Plathelminthes, Unguiphora). Zoomorphology 104, 226–230 (1984). https://doi.org/10.1007/BF00312035

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  • DOI: https://doi.org/10.1007/BF00312035

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