CATALOG OF ORIGINAL DESCRIPTIONS: Zygocircus polygonus 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 -> Zygocircus -> Zygocircus polygonus
Other pages this level: Z. acacia, Z. acanthophorus, Z. archicircus, Z. buetschli, Z. capulosus, Z. cimelium, Z. dodecanthus, Z. hexagonus, Z. longispinus, Z. pentagonus, Z. piscicaudatus, Z. polygonus, Z. productus, Z. productus abnormis, Z. productus tricarinatus, Z. rhombicus, Z. sagittalis, Z. tetragonus, Z. trigonus, Z. triquetrus

Zygocircus polygonus

Citation: Zygocircus polygonus Haeckel 1887
Rank: species
Type specimens: fig.2
Type repository: No information given
Described on page(s) : p.947. pl.81
Family (traditional): Plagiacanthidae
Family (modern): Stephaniidae

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Current identification:

Original Description
Gate irregularly roundish or ovate. Ring irregularly polygonal or sometimes nearly circular, without edges, armed with a single series of ten to fifteen short pyramidal spines, which are irregularly disposed in the sagittal plane. The ventral rod is strongly curved, often semicircular, the dorsal rod less curved or nearly straight.

Diameter of the gate 0.05 to 0.0.7; length of the spines 0.004 to 0.02.


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


Zygocircus polygonus compiled by the radiolaria@mikrotax project team viewed: 24-7-2021

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