CATALOG OF ORIGINAL DESCRIPTIONS: Pteroscenium arcuatum 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 -> P -> Pteroscenium -> Pteroscenium arcuatum
Other pages this level: P. arcadophorum, P. arcuatum, P. aurivillii, P. macropodium, P. pinnatum, P. spinulosum, P. tripocolpum

Pteroscenium arcuatum

Citation: Pteroscenium arcuatum Haeckel 1887
Rank: species
Type locality: LM25
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type specimens: pl.98, fig.4
Type repository: No information given
Described on page(s) : p.1152

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Current identification/main database link: Pteroscenium arcuatum Haeckel 1887

Original Description
Shell campanulate, smooth, nearly conical, somewhat broader than long, with irregular dense network of small circular pores. Columella straight, with two or three triradiate verticils of horizontal lateral branches, which are inserted in the shell-wall. Horn slender pyramidal, as long as the shell. Three divergent feet twice as long as the horn, strongly curved, thorny, three-edged; the distance of their pointed ends twice as broad as the shell. From the outer edge of each foot arise numerous ascending bristles, which are connected together and with similar lateral branches of the horn by curved arches, forming three delicate spiny vertical wings.

Size: Shell 0.06 long, 0.08 broad.


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


Pteroscenium arcuatum compiled by the radiolaria@mikrotax project team viewed: 19-4-2021

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