radiolaria - rads_cat - Cromyomma mucronatum <title>radiolaria - rads_cat - Cromyomma mucronatum

CATALOG OF ORIGINAL DESCRIPTIONS: Cromyomma mucronatum 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 -> C -> Cromyomma -> Cromyomma mucronatum
Other pages this level: C. circumtextum, C. macroporum, C. mucronatum, C. perplexum, C. perspicuum, C. riedeli, C. spinulosa, C. tuberculata, C. villosum

Cromyomma mucronatum

Citation: Cromyomma mucronatum Haeckel 1887
Rank: species
Described on page(s) : p.263
Type specimens: pl.30, figs.5,5a
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type locality: LM31
Type repository: No information given

Current identification:


Original Description

Radial proportion of the three [sic] spheres = 1: 2: 3: 6. Outer cortical shell thin walled, with large, irregular, roundish pores and crested three-sided bars; inner cortical shell with regular, circular, hexagollally formed pores (four times as broad as the bars). Both medullary shells with simple, small, regular, circular pores (fig. 5a). Twelve radial spines three-sided prismatic, dagger shaped, with three teeth, as long as the diameter of the innermost shell.

Translation:

Size:
Diameter of the four shells— - A) 0.24, (B) 0.12, (C) 0.08, (D) 0.04; meshes of the outer shell 0.02 to 0.04; length of the spines 0.04.

Etymology:

Extra details from original publication

Editors' Notes
Haeckel listed Cromyomma mucronatum under the subgeneric name Cromyommura , but did not include the subgeneric name in the species name.[comment from RadWorld database]

References:

Haeckel, E (1887a). 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 O


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Cromyomma mucronatum compiled by the radiolaria@mikrotax project team viewed: 7-2-2023

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