CATALOG OF ORIGINAL DESCRIPTIONS: Amphicyclia pachydiscus 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 -> Amphicyclia -> Amphicyclia pachydiscus
Other pages this level: A. amphistyla, A. bispina, A. chronometra, A. pachydiscus, A. pentaspina, A. quadrispina, A. trispina

Amphicyclia pachydiscus

Citation: Amphicyclia pachydiscus Haeckel 1887
Rank: species
Type specimens: pl.38, fig.2
Type repository: No information given
Described on page(s) : p.464
Family (traditional): not-known

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Current identification:


Original Description
Phacoid shell very thick, spongy, twice as broad as the outer and five times as broad as the inner medullary shell, divided by fifty to seventy radial beams into subregular chambers, which are stratified in five to six floors. Pores irregular, roundish; ten to twelve on the radius, of the phacoid shell, two to three on the breadth of each chamber. The two opposite marginal spines quadrangular prismatic, very long, as broad as the radius of the inner medullary shell. Fig. 2 exhibits a vertical section (slide) through the centre.

Diameter of the disk (with five rings) 220µm, of the phacoid shell 100µm, outer medullary shell 50µm, inner 20µm.

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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Amphicyclia pachydiscus compiled by the radiolaria@mikrotax project team viewed: 19-4-2021

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