radiolaria - rads_cat - Amphymenium monstrosum radiolaria - rads_cat - Amphymenium monstrosum

CATALOG OF ORIGINAL DESCRIPTIONS: Amphymenium monstrosum Haeckel 1887

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 -> Amphymenium -> Amphymenium monstrosum
Other pages this level: A. amphistylium, A. challengerae, A. connicinum, A. elegans, A. ellipticum, A. fusiforme, A. monstrosum, A. pupula, A. romboideum, A. splendiarmatum, A. zygartus

Amphymenium monstrosum

Citation: Amphymenium monstrosum Haeckel 1887
taxonomic rank: species
Described on page(s) : p.520
Type specimens: pl.44, fig.11
Type repository: No information given
Family (traditional): Spongodiscidae
Family (modern): Euchitoniidae

Current identification:


Original Description

Both arms equal, little longer than broad, with six to seven convex joints. The axis of both arms is not common and straight, as in all other species of this genus, but broken, therefore the incomplete patagium, which envelops only two to three joints of the arms, is on one side convex, on the other side concave; it is formed by a simple lattice-plate, connected with the arms by numerous radial beams. This anomalous form, seen only once, may perhaps be a monstrosity of Euchitonia.

Radius of each arm 120µm, greatest breadth 60µm; transverse breadth of the patagium 130µm.

Editors' Notes
Haeckel listed Amphymenium monstrosum under the subgeneric name Ommatogramma, but did not include the subgeneric name in the species name.

On pl.44 Haeckel includes two figures labelled "1" and no figure labelled "11". The figure given here is the one labelled "11" in another printing of this work.

References:

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


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Amphymenium monstrosum compiled by the radiolaria@mikrotax project team viewed: 11-9-2024

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