CATALOG OF ORIGINAL DESCRIPTIONS: Alacorys hexapleura 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 -> Alacorys -> Alacorys hexapleura
Other pages this level: A. bismarckii, A. carcinus, A. dodecantha, A. enneacantha, A. friderici, A. gigas, A. guilelmi, A. hexacantha, A. hexapleura, A. lutheri, A. octacantha, A. polyacantha

Alacorys hexapleura

Citation: Alacorys hexapleura Haeckel 1887
Rank: species
Type repository: No information given
Described on page(s) : p.1373
Family (traditional): not-known

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Current identification:

Original Description
Shell spiny, with distinct collar stricture. Length of the three joints = 2: 10: 8, breadth = 3: 11: 10. Cephalis hemispherical, large, hyaline, and thick-walled, with a very stout, conical horn of the same length. Thorax pear-shaped, with numerous, regular, circular pores and conical spines, the size of which increases gradually towards the deep, lumbar stricture. Abdomen truncate, conical, with irregular, roundish pores, and six very strong, straight, divergent ribs, prolonged into six short, conical feet.

Length of the three joints, a 40, b 200, c 160µm; breadth, a 60, b 220µm, c 200µm.

Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Alacorys hexapleura under the subgeneric name Hexalacorys, 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


Alacorys hexapleura compiled by the radiolaria@mikrotax project team viewed: 7-3-2021

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