CATALOG OF ORIGINAL DESCRIPTIONS: Trigonactura rhopalastrella 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 -> Trigonactura -> Trigonactura rhopalastrella
Other pages this level: T. angusta, T. lanceolata, T. rhopalastrella, T. triacantha, T. trigonobrachia, T. trigonodiscus, T. trixiphos

Trigonactura rhopalastrella

Citation: Trigonactura rhopalastrella Haeckel 1887
Rank: species
Type repository: No information given
Described on page(s) : p.471
Family (traditional): Coccodiscidae
Family (modern): Coccodiscidae

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Current identification:

Original Description
Phacoid shell twice as broad as the medullary shell, with five pores on its radius, without a perfect chambered ring around it. Arms club-shaped, at the blunt distal end rounded, as long as the diameter of the phacoid shell; their basal breadth is one-fourth, their distal breadth one-half of its length.

Diameter of the phacoid shell 100µm, of the medullary shell 50µm; length of the arms 100µm, basal breadth 25µm, distal breadth 50µm.

Editors' Notes
Haeckel listed Trigonactura rhopalastrella under the subgeneric name Trigonacturium, 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 year 1873-1876, Zoology. 18: 1-1803. gs


Trigonactura rhopalastrella compiled by the radiolaria@mikrotax project team viewed: 18-4-2021

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