CATALOG OF ORIGINAL DESCRIPTIONS: Amphiactura amphibrachia 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 -> Amphiactura -> Amphiactura amphibrachia
Other pages this level: A. amphibrachia

Amphiactura amphibrachia

Citation: Amphiactura amphibrachia Haeckel 1887
Rank: species
Type specimens: pl.38, fig.3; fig.4
Type repository: No information given
Described on page(s) : p.470
Family (traditional): Coccodiscidae
Family (modern): Coccodiscidae

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Current identification:


Original Description
Phacoid shell three times as broad as the medullary shell, with eight pores on its radius. Arms nearly equilateral triangular, twice as long as the diameter of the phacoid shell, at the truncated distal end as broad as the latter, at the base only one-third as broad. Patagium a circular lenticular disk, enveloping only the basal third of the arms, with three to four concentric circular rings, divided into chambers by about forty radial beams, which are prolonged beyond the margin of the patagium into radial spines. The vertical section (fig. 4) shows that the chambers of each arm (eleven to twelve transverse rows in the radius) are disposed in two layers

Diameter of the phacoid shell 90µm, of the medullary shell 30µm; length of the arms 180µm, basal breadth 30µm, distal breadth 90µm.

References:

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


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Amphiactura amphibrachia compiled by the radiolaria@mikrotax project team viewed: 27-2-2021

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