radiolaria - rads_cat - Amphitholonium acanthonium radiolaria - rads_cat - Amphitholonium acanthonium

CATALOG OF ORIGINAL DESCRIPTIONS: Amphitholonium acanthonium 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 -> Amphitholonium -> Amphitholonium acanthonium
Other pages this level: A. acanthonium, A. octostylium, A. pylonium, A. transversarum, A. tricolonium

Amphitholonium acanthonium

Citation: Amphitholonium acanthonium Haeckel 1887
taxonomic rank: species
Described on page(s) : p.669
Type repository: No information given
Family (traditional): not-known

Current identification:


Original Description

Outer cortical shell of the same three-jointed form as the inner at a uniform distance from it; central chamber higher vaulted than both cupolas. Network of the outer shell irregular, delicate, of the inner regular, strong, with circular, hexagonally framed pores, three times as broad as the bars; eight to nine in the semicircle of one cupola. On the surface, quite symmetrically disposed, twenty long and strong, cylindrical, radial spines; eight in the sagittal plane, four in the transverse plane; eight in two diagonal planes between the former and the latter. The remarkable geometric disposition of the twenty spines is in this species quite the same as in Amphitholus acanthometra. It differs from this nearly allied species in the double cortical shell.

Major axis of the outer cortical shell 180µm, minor 140µm; major axis of the inner cortical shell 140µm, minor 100µm; pores 12µm, bars 4µm.

Editors' Notes
There was no illustration of this species in Haeckel (1887)

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


logo

Amphitholonium acanthonium compiled by the radiolaria@mikrotax project team viewed: 12-9-2024

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/radiolaria/index.php?id=250214 Go to Archive.is to create a permanent copy of this page - citation notes



Add Comment

* Required information
Captcha Image
Powered by Commentics

Comments

No comments yet. Be the first!