radiolaria - rads_cat - Zygocircus acacia

CATALOG OF ORIGINAL DESCRIPTIONS: Zygocircus acacia 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 acacia
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 acacia

Citation: Zygocircus acacia Haeckel 1887
Rank: species
Type locality: LM19
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type specimens: pl.81, fig.5
Type repository: No information given
Described on page(s) : p.947

Current identification:

Original Description
Gate obliquely ovate. Ring semi-ovate, with straight dorsal and. curved ventral rod, partly with distorted edges. Six bunches of numerous short and straight conical spines arise from the ring, one larger bunch (often trifid) from the apex, two smaller bunches from the dorsal, two from the ventral rod, and one very large bunch from the base. The six bunches are often more separated, smaller, and the spines shorter than in the figured specimen, which passes over into Dendrocircus.

Size: Diameter of the gate 0.12 to 0.16; length of the spines, 0.01 to 0.07.


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 acacia compiled by the radiolaria@mikrotax project team viewed: 28-10-2021

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