CATALOG OF ORIGINAL DESCRIPTIONS: Alacorys octacantha 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 octacantha
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 octacantha

Citation: Alacorys octacantha Haeckel 1887
Rank: species
Type repository: No information given
Described on page(s) : p.1374
Family (traditional): not-known

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Current identification:

Original Description
Shell spiny, with deep collar stricture. Length of the three joints = 2: 8: 6, breadth = 3: 7: 7. Cephalis ovate, with a short, conical horn. Thorax pear-shaped, spiny, with regular, circular pores, similar to Cycladophora erinaceus, Ehrenberg (1875, Abhandl. d. k. Akad. d. Wiss. Berlin, p.68, Taf. xviii. fig. 2). Abdomen truncate, conical, with irregular, roundish pores, and eight stout, straight, thorny, divergent ribs of equal size, which are prolonged into eight free, conical, spiny feet of the same length.

Length of the three joints, a 400, b 160, c 120µm; breadth, a 60, b 140, c 140µm.

Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Alacorys octacantha under the subgeneric name Octalacorys, 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 octacantha compiled by the radiolaria@mikrotax project team viewed: 9-3-2021

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