CATALOG OF ORIGINAL DESCRIPTIONS: Trigonocyclia triangularis 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 -> Trigonocyclia -> Trigonocyclia triangularis
Other pages this level: T. prima, T. triangularis

Trigonocyclia triangularis

Citation: Trigonocyclia triangularis Haeckel 1887
Rank: species
Type specimens: pl.37, fig.5
Type repository: No information given
Described on page(s) : p.464
Family (traditional): Coccodiscidae
Family (modern): Coccodiscidae

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Current identification/main database link:

Original Description
Phacoid shell three times as broad as the medullary shell, connected with it by six equidistant radial beams, three of which are prolonged into marginal spines. In the equatorial plane only one single chambered ring, divided by forty-four radial beams into narrow chambers. Pores large, irregular, roundish; five on the radius of the phacoid shell, two on each chamber. Surface and margin of the disk spiny. Three strong conical marginal spines, divergent at equal angles, as long as the radius of the disk.

Diameter of the disk 160µm, of the phacoid shell 120µm, of the medullary shell 40µm.

Etymology: Latin tri- + angularis -is -e = having three corners


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


Trigonocyclia triangularis compiled by the radiolaria@mikrotax project team viewed: 26-11-2020

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