CATALOG OF ORIGINAL DESCRIPTIONS: Alacorys bismarckii 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 bismarckii
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 bismarckii

Citation: Alacorys bismarckii Haeckel 1887
Rank: species
Type locality: LM560
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Eocene] Cenozoic
Type specimens: pl.65, fig.3
Type repository: No information given
Described on page(s) : p.1372

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Current identification:

Original Description
Shell spiny, with distinct collar stricture. Length of the three joints = 1: 4: 5, breadth = 2: 7: 10. Cephalis hemispherical, with a very stout, dimpled, conical horn of the same length. Thorax campanulate, spiny, with regular, circular pores. Abdomen wider, campanulate, with larger conical spines, and a small number of irregular, roundish, very large holes. From the peristome descend, nearly vertically, five very large cylindrical feet, nearly twice as long as the shell; they are S-shaped, curved, spinulate in the distal half, and armed at the proximal base with two stout conical spines, the smaller of which is directed inwards, the larger curved upwards. Dedicated to Prince Otto von Bismarck, the Reconstructor of the German Empire.

Size: Length of the three joints, a 20, b 80, c 100µm; breadth, a 40, b 140, c 200µm.

Editors' Notes
Haeckel listed Alacorys bismarkii under the subgeneric name Pentalacorys, but did not include the subgeneric name in the species name.[comment from RadWorld database]


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 bismarckii compiled by the radiolaria@mikrotax project team viewed: 9-3-2021

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