radiolaria - rads_cat - Plegmodiscus radiolaria - rads_cat - Plegmodiscus


This page provides data from the catalog of type descriptions. The catalog is sorted alphabetically. Use the current identification link to go back to the main database.

Higher levels: rads_cat -> P -> Plegmodiscus
Other pages this level: << < Plannapus, Platybursa, Platycryphalus, Platysestrum, Plectacantha, Plectagonidium, Plectaniscus, Plectanium, Plectocoronis, Plectodiscus, Plectophora, Plectophorina, Plectopyramis, Plectotripus, Plegmatium, Plegmodiscus, Plegmosphaera, Pleurocorys, Pleuropodium, Pleurospyris, Podocampe, Podocapsa, Podocoronis, Podocyrtis, Polelazoum, Polyplagia, Polyplecta, Polysolenia, Polyspyris, Polystichia, Poroamphora> >>


Citation: Plegmodiscus Haeckel 1887
taxonomic rank: genus
Described on page(s) : 455

Current identification:

Original Description

Spongurida with an ellipsoidal or cylindrical spongy shell, containing an internal cavity, without a latticed medullary shell. Polar spines absent.

Editors' Notes
The genus Spongellipsis embraces those very simple Spongurida in which the ellipsoidal central capsule is enclosed in a spongy cortical shell of the same form. It corresponds, therefore, to Plegmosphaera among the Sphæroidea, to Plegmodiscus among the Discoidea, and to Spongolarcus among the Larcoidea. In some species the ellipsoidal form is prolonged and passes into a cylindrical one.

[Nomen Nudum; premature name]


Haeckel, E (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Report on the Scientific Results of the Voyage of H.M.S. Challenger during the years 1873-1876. 18: 1-1803. gs O


Plegmodiscus compiled by the radiolaria@mikrotax project team viewed: 20-6-2024

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