radiolaria - rads_cat - Archicircus duodenus radiolaria - rads_cat - Archicircus duodenus

CATALOG OF ORIGINAL DESCRIPTIONS: Archicircus duodenus 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 -> Archicircus -> Archicircus duodenus
Other pages this level: A. duodenus, A. ellipsis, A. hertwigii, A. hexacanthus, A. monopylus, A. monostephus, A. ovalis, A. primordialis, A. princeps, A. quadratus, A. rhombus, A. sexangularis, A. triglyphus

Archicircus duodenus

Citation: Archicircus duodenus Haeckel 1887
taxonomic rank: species
Described on page(s) : p.942
Type repository: No information given
Family (traditional): Trissocyclidae

Current identification:

Original Description

Gate square or rhombic. Ring rhombic, with three prominent edges and twelve stout and straight pyramidal spines, about as long as the radius of the gate. In each of the four corners are three divergent spines, arising from the three edges of each two meeting rods.

Diameter of the gate 0.08; thickness of the ring 0.012. [dimensions in mm]

Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Archicircus duodenus under the subgeneric name Archistephus, but did not include the subgeneric name in the species 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


Archicircus duodenus compiled by the radiolaria@mikrotax project team viewed: 26-5-2024

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