radiolaria - rads_cat - Tympanidium binoctonum radiolaria - rads_cat - Tympanidium binoctonum

CATALOG OF ORIGINAL DESCRIPTIONS: Tympanidium binoctonum 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 -> T -> Tympanidium -> Tympanidium binoctonum
Other pages this level: T. barbadense, T. binoctonum, T. foliosum, T. spinosum, T. staurocircum

Tympanidium binoctonum

Citation: Tympanidium binoctonum Haeckel 1887
Taxonomic rank: species
Described on page(s) : p.1004
Type specimens: pl.94, fig.18
Type repository: No information given
Family (traditional): Trissocyclidae
Family (modern): Acanthodesmiidae

Current identification/main database link: Tympanomma binoctonum Haeckel 1887


Original Description

Shell with sixteen gates; the four lateral gates double, bisected by the lateral parts of an incomplete equatorial ring. Basal gates nearly rectangular, of the same breadth as the pentagonal mitral gates, but twice as long. Equatorial outline of the shell (seen in fig. 18 from the apical pole) octagonal. All rods of the shell thin, smooth.

Transverse axis of the shell 0.1, sagittal axis 0.06. [dimensions in mm]

Editors' Notes
Haeckel listed Tympanidium binoctonum under the subgeneric name Tympanomma, but did not include the subgeneric name in the species name.

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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Tympanidium binoctonum compiled by the radiolaria@mikrotax project team viewed: 9-10-2026

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=253090 Go to Archive.is to create a permanent copy of this page - citation notes



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