CATALOG OF ORIGINAL DESCRIPTIONS: Actissa ellipsoides 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 -> A -> Actissa -> Actissa ellipsoides
Other pages this level: A. discoides, A. ellipsoides, A. larcoides, A. lenticularis, A. phacoides, A. princeps, A. prototypus, A. prunoides, A. radiata

Actissa ellipsoides

Citation: Actissa ellipsoides Haeckel 1887
Rank: species
Type repository: No information given
Described on page(s) : p.14
Family (traditional): not-known

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Current identification:

Original Description
Central capsule ellipsoidal, red-coloured, with a thick, double-edged membrane. Proportion of its major axis to the minor 5: 3. Nucleus ellipsoidal, one-third as large as the capsule, containing eight small dark nucleoli. Protoplasm dusky, filled with dark pink pigment-granules; in the major axis, on both poles of the nucleus-axis, two large oil-globules, half as large as the nucleus. Calymma ellipsoidal, with numerous xanthellae; its diameter four times as large as that of the capsule.

Major axis of the capsule 200µm, minor 120µm; major axis of the nucleus 70µm, minor 40µm; major axis of the calymma 800µm, minor 500µm.

Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Actissa ellipsoides under the subgeneric name Actiprunum, but did not include the subgeneric name in the species name.


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


Actissa ellipsoides compiled by the radiolaria@mikrotax project team viewed: 19-4-2021

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