radiolaria - rads_cat - Periarachnium periplectum radiolaria - rads_cat - Periarachnium periplectum

CATALOG OF ORIGINAL DESCRIPTIONS: Periarachnium periplectum 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 -> Periarachnium -> Periarachnium periplectum
Other pages this level: P. pauliani, P. periplectum

Periarachnium periplectum

Citation: Periarachnium periplectum Haeckel 1887
Taxonomic rank: species
Described on page(s) : p.1297
Type specimens: pl.55, fig.11
Type repository: No information given
Family (traditional): Theoperidae
Family (modern): Lampromitridae

Current identification/main database link: Periarachnium periplectum Haeckel 1887


Original Description

Cephalis hemispherical, separated from the thorax by a sharp collar stricture, from which arise three internal, diverging beams supporting its upper third. Thorax campanulate, conical, about as long as broad, with slightly convex outlines. The delicate lattice-work of the entire shell is double; the inner composed of subregular, hexagonal meshes; the outer of larger, irregular, polygonal meshes. The bars of the inner are much thicker than the thin threads of the outer. Both shells are connected by numerous bristle-shaped beams. The central capsule of the figured specimen exhibited in the upper part of the thorax three club-shaped lobes, which arose from a sphere enclosed in the cephalis and containing the nucleus.

Cephalis 0.02 long, 0.03 broad; thorax 0.15 long, 0.12 broad. [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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Periarachnium periplectum compiled by the radiolaria@mikrotax project team viewed: 21-5-2025

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=251961 Go to Archive.is to create a permanent copy of this page - citation notes



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