radiolaria - rads_cat - Amphitholonium radiolaria - rads_cat - Amphitholonium


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 -> A -> Amphitholonium
Other pages this level: << < Amphicentria, Amphicraspedum, Amphicryphalus, Amphicyclia, Amphilarcus, Amphimelissa, Amphiplecta, Amphipternis, Amphipyle, Amphipylonium, Amphirhopalum, Amphisphaera, Amphisphaeridium, Amphispyris, Amphistylus, Amphitholonium, Amphitholus, Amphymenium, Androcyclas, Androspyris, Annulatospira, Anomalacantha, Anomalosoma, Antarctissa, Anthocyrtella, Anthocyrtidium, Anthocyrtis, Anthocyrtium, Anthocyrtoma, Anthomma, Anthospyris> >>

not figuredAmphitholonium acanthonium Haeckel 1887

not figuredAmphitholonium octostylium Haeckel 1887

Amphitholonium pylonium Su 1982

Amphitholonium transversarum Chen 1987

Amphitholonium tricolonium Haeckel 1887
= Amphitholus acanthometra


Citation: Amphitholonium Haeckel 1887
taxonomic rank: genus
Type species: Amphitholonium tricolonium Haeckel 1887 [designated by Campbell,1954, p.D98]
Described on page(s) : 668
Family (traditional): not-known

Current identification:

Original Description

Tholonida with double cortical shell (with external veil), with two hemispherical cupolas, opposite on the poles of one axis; central chamber (between them) Larnacilla-shaped, with medullary shell.

The genus Amphitholonium differs from the nearly allied Amphitholus (probably its ancestral form) only in the duplication of the cortical shell; the outer has the same three-jointed form as the inner, and is connected with it by a variable number of radial beams. From the similar Tholodes it differs in the possession of a medullary shell.

Greek amphitholonium = small shell with two opposite cupolas"


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


Amphitholonium compiled by the radiolaria@mikrotax project team viewed: 17-7-2024

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