radiolaria - rads_cat - Stigmosphaerusa horrida radiolaria - rads_cat - Stigmosphaerusa horrida

CATALOG OF ORIGINAL DESCRIPTIONS: Stigmosphaerusa horrida Hollande & Enjumet 1960

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 -> Stigmosphaerusa -> Stigmosphaerusa horrida
Other pages this level: S. horrida

Stigmosphaerusa horrida

Citation: Stigmosphaerusa horrida Hollande & Enjumet 1960
Taxonomic rank: species
Described on page(s) : p.90
Type specimens: pl.40, fig.1
Type repository: No information given
Family (traditional): Actinommidae
Family (modern): Hexastylidae

Current identification:


Original Description

Coque corticale (200µm de diamètre environ) grillagée; pores circulaires ou ovoïdes, de diamètre très variable, et limités par un cadre hexagonal épais. Surface couverte de longues épines (70µm environ) issues de chaque point nodal. Ces épines sont droites ou plus ou moins courbées, le plus souvent simples, mais parfois aussi bifurquées et portant de petites dents. Onze spicules radiaires en tous points comparables aux épines. A cette espèce, nous rapportons un individu à coque grêle pourvue d'épines courtes qui, vraisemblablement, est un stade jeune (Pl. XLIII fig. 2).
Structure de la capsule centrale assez voisine de celle de Stigmosphaera cruciata, mais axoplaste sphérique. Des Xanthelles.
[Lattice cortical shell (d=200µm), with circular, or ovoid, pores, of variable size and with thick hexagonal frames. Shell surface covered by long spines (nearly 70µm) originating from nodal points. These spines are straight, or more or less curved, and mostly simple, but sometimes bifurcate and with small teeth. 11 radial beams similar to the spines. We place in this species a specimen with a thin shell and short spines that is probably a juvenile form (pl.43, fig.2). Central capsule with a structure close to that of Stigmosphaera cruciata, but with a spherical axoplast. Xanthellae. (In French, translated by J.P.C.)]

Editors' Notes
Plankton, Bay of Algiers, February 500, 200m.

References:

Hollande, A. & Enjumet, M. (1960). Cytologie, evolution et systematique des Sphaeroides (Radiolaires). Archives du Museum National d'Histoire Naturelle, Paris. 7: 1-134. gs


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Stigmosphaerusa horrida compiled by the radiolaria@mikrotax project team viewed: 15-8-2026

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