radiolaria - rads_cat - Stichopilium bicorne

CATALOG OF ORIGINAL DESCRIPTIONS: Stichopilium bicorne 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 -> Stichopilium -> Stichopilium bicorne
Other pages this level: S. annulatum, S. anocor, S. bicorne, S. campanulatum, S. cortina, S. costatum, S. cunninghami, S. macropterum, S. obliqum, S. pectinatum, S. phtthinados, S. rapaeformis, S. thoracopterum, S. triserratum, S. uncinatum, S. variabilis

Stichopilium bicorne

Citation: Stichopilium bicorne Haeckel 1887
Rank: species
Described on page(s) : p.1437
Type specimens: pl.77, fig.9
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type locality: LM25
Type repository: No information given

Current identification/main database link: Stichopilium bicorne Haeckel 1887

Original Description

Shell conical, with three slight strictures. Length of the four joints = 4: 14: 5: 3. Cephalis large, conical, with two stout pyramidal, divergent horns of twice the length. From its base (in the middle of the collar stricture) arise three internal, downwardly divergent ribs, which are prolonged on the outside of the upper half of the thorax into three stout, pyramidal, lateral spines (similar to the horns). The fourth joint, with wide open mouth, was the broadest, but not fully developed in the single specimen observed. Pores subregular, hexagonal, with thin bars.


Length of the shell (with four joints) 0.02, breadth 0.09. Length of the single joints, a 0.02, b 0.07, c 0.025, d 0.015.


Extra details from original publication

Editors' Notes
Haeckel listed Stichopilium bicorne under the subgeneric name Triacartus, 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 years 1873-1876. 18: 1-1803. gs


Stichopilium bicorne compiled by the radiolaria@mikrotax project team viewed: 29-11-2022

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