radiolaria - rads_cat - Centrobotrys gravida radiolaria - rads_cat - Centrobotrys gravida

CATALOG OF ORIGINAL DESCRIPTIONS: Centrobotrys gravida Moore 1971

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 -> C -> Centrobotrys -> Centrobotrys gravida
Other pages this level: C. gravida, C. petrushevskayae, C. thermophila

Centrobotrys gravida

Citation: Centrobotrys gravida Moore 1971
Taxonomic rank: species
Described on page(s) : p.744
Type specimens: pl.5, fig.8
Family (traditional): Cannobotryidae
Family (modern): Botryocyrtidae

Current identification/main database link: Centrobotrys gravida Moore 1971


Original Description

Internal [eucephalic] lobe heavy, spherical with no observable pores. The arrangement of the internal spines and axial rod appears to be as illustrated by Nigrini (1967, p.50) for C. thermophila. However, only the ventral spine forms a pronounced opening in the outer cephalic wall. Outer shell, heavy and rough with irregularly arranged subcircular pores. Pores vary in size but are generally largest in the equatorial region of the spherical to subspherical thorax. [Collar] stricture marked; thorax closed.

Size:
Maximum length 128-166 µ. Maximum breadth 75-113 µ.

Extra details from original publication
Distinguishing characters: Thick-walled form with closed inflated thorax. (Riedel and Sanfilippo, 1978a)

C. gravida is more coarsely porous than other species of the genus, and differs in having a thicker shell. Sanfilippo et al., 1985)

Phylogeny: The ancestry of this species is not yet known, but C. petrushevskayae is clearly its descendant.

Editors' Notes
The eucephalic chamber is located equidistantly from either side of the integrated ante- and post-cephalic chambers; the outline of the latter is generally semicircular, but in occasional specimens it tends to be bluntly pointed apically. The closed, globular thorax may be of the same size as the total cephalic structure, but is usually larger. (Sanfilippo et al., 1985)

References:

Moore, T. C. Jr. (1971). Radiolaria. Initial Reports of the Deep Sea Drilling Project. 8: 727-774. gs


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Centrobotrys gravida compiled by the radiolaria@mikrotax project team viewed: 22-5-2025

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=250539 Go to Archive.is to create a permanent copy of this page - citation notes



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