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Current identification:
Original Description
Central capsule spherical, red-coloured, with a thick, double-edged membrane. Nucleus central, spherical, half as large as the radius of the capsule, containing a large number (forty to sixty) of small dark nucleoli. Protoplasm filled up with numerous small clear vacuoles, and between them fine red pigment granules; on the inside of the membrane one layer of dark oil-globules. Jelly-like calymma four times as broad as the enclosed capsule, with very numerous small xanthellae.
Diameter of the capsule 200µm, of the nucleus 50µm, of the calymma 800µm.
Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Actissa prototypus under the subgeneric name Procyttarium, 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. gsReferences:
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Actissa prototypus compiled by the radiolaria@mikrotax project team viewed: 19-4-2021
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=250127 Go to Archive.is to create a permanent copy of this page - citation notes |