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

Trigonactura trixiphos

Citation: Trigonactura trixiphos Haeckel 1887
Rank: species
Type repository: No information given
Described on page(s) : p.473
Family (traditional): Coccodiscidae

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Current identification:

Original Description
Phacoid shell circular, twice as broad as the medullary shell, without a completely surrounding chambered ring, with four pores on its radius. Arms club-shaped, about as long as the diameter of the central disk, at the base half as broad as long, at the rounded distal end broader, and armed with a strong pyramidal terminal spine, nearly as long as the arm itself.

Diameter of the phacoid shell 80µm, of the medullary shell 40µm; length of the arms (without terminal spine) 80µm, basal breadth 40µm, distal breadth 60µm.

Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Trigonactura trixiphos under the subgeneric name Trigonactinum, 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 trixiphos compiled by the radiolaria@mikrotax project team viewed: 18-4-2021

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