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

Zoniscus tetracanthus

Citation: Zoniscus tetracanthus Haeckel 1887
Rank: species
Type locality: LM25
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type specimens: pl.50, fig.10
Type repository: No information given
Described on page(s) : p.687

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Current identification:

Original Description
Cortical shell nearly quadrangular, one and a half times as long as broad, with four prominent corners, from which arise in the lateral plane four strong, three-sided pyramidal radial spines (opposite in pairs in two crossed diagonal axes). Surface thorny, with exception of the concave lateral sides. Sagittal constriction two and a half times as long as the hexagonal medullary shell. Both equatorial cupolas scarcely half as large as the four corner cupolas.

Size: Length of the cortical shell 0.18, breadth 0.12; length of the medullary shell 0.07, breadth 0.04.


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

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