CATALOG OF ORIGINAL DESCRIPTIONS: Sethopyramis bicornis 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 -> S -> Sethopyramis -> Sethopyramis bicornis
Other pages this level: S. acuticephala, S. akanthodes akanthodes, S. akanthodes leptopleura, S. aneotos, S. bicornis, S. cyclomma, S. dodecalactis, S. enneactis, S. fenestrata, S. hexagonalis, S. hexalactis, S. lucerna, S. magnifica, S. maxima, S. pulcherrima, S. quadrata [sec. junior hom], S. scalariformis, S. septimoangularis, S. spinosa, S. trapezoides, S. victori

Sethopyramis bicornis

Citation: Sethopyramis bicornis Haeckel 1887
Rank: species
Type locality: LM11
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type repository: No information given
Described on page(s) : p.1256

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Current identification:

Original Description
Shell spiny, slender, pyramidal. Cephalis small spherical, hyaline, with two divergent conical horns, the major (occipital) three times and the minor (frontal) twice as long. Thorax slender, pyramidal, campanulate, thorny, with twenty to thirty radial beams, which are little curved, convex in the upper, concave in the lower half, and connected by numerous interrupted transverse bars. Meshes in the upper third rounded, in the lower two-thirds quadrangular, of very different sizes. Surface covered with spinules.

Size: Cephalis 0.02 diameter; thorax 0.9 long, 0.4 broad.

Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Sethopyramis bicornis under the subgeneric name Actinopyramis, 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


Sethopyramis bicornis compiled by the radiolaria@mikrotax project team viewed: 18-6-2021

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