CATALOG OF ORIGINAL DESCRIPTIONS: Zoniscus hexatholius 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 -> Z -> Zoniscus -> Zoniscus hexatholius
Other pages this level: Z. hexathalamus, Z. hexatholius, Z. octacanthus, Z. rectangulus, Z. tetracanthus

Zoniscus hexatholius

Citation: Zoniscus hexatholius Haeckel 1887
Rank: species
Type specimens: pl.50, figs.11,11a
Type repository: No information given
Described on page(s) : p.687
Family (traditional): Tholoniidae
Family (modern): Tholoniidae

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Current identification:

Original Description
Cortical shell nearly rectangular, with four rounded corners and deep sagittal constriction, one and a fourth times as long as broad, with thorny surface. Twelve longer edged radial spines; eight opposite in pairs in two crossed diagonal planes (as in the foregoing. species), four others in the lateral plane, opposite in pairs on both sides of the sagittal constriction, which is scarcely twice as long as the hexagonal, in the equatorial plane constricted medullary shell. Both equatorial cupolas nearly of the same size as the four corner cupolas.

Length of the cortical shell 160µm, breadth 130µm; length of the medullary shell 70µm, breadth 40µm.


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


Zoniscus hexatholius compiled by the radiolaria@mikrotax project team viewed: 17-6-2021

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