radiolaria - rads_cat - Parastephanus quadrispinus radiolaria - rads_cat - Parastephanus quadrispinus

CATALOG OF ORIGINAL DESCRIPTIONS: Parastephanus quadrispinus 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 -> P -> Parastephanus -> Parastephanus quadrispinus
Other pages this level: P. asymmetricus, P. circularis, P. dispar, P. quadrispinus

Parastephanus quadrispinus

Citation: Parastephanus quadrispinus Haeckel 1887
Taxonomic rank: species
Described on page(s) : p.1008
Type specimens: pl.93, fig.21
Type repository: No information given
Family (traditional): not-known

Current identification:


Original Description

Two horizontal rings smooth, elliptical or nearly circular, of equal size, connected by two vertical, slightly curved columellae, which are about as long as the radius of the rings. Each ring bears two simple lateral spines, which in the mitral ring are curved downwards, in the basal ring; upwards, possibly the last remains of a reduced frontal ring.

Diameter of the rings 0.09, length of the columellae 0.05. [dimensions in mm]

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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Parastephanus quadrispinus compiled by the radiolaria@mikrotax project team viewed: 12-5-2025

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=251948 Go to Archive.is to create a permanent copy of this page - citation notes



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