CATALOG OF ORIGINAL DESCRIPTIONS: Sethophormis pentalactis 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 -> Sethophormis -> Sethophormis pentalactis
Other pages this level: S. arachnium, S. asteriscus, S. astrodiscus, S. aurelia, S. cruciata, S. dodecaster, S. enneactis, S. enneastrum, S. eupilium, S. floscula, S. hexagonalis, S. hexalactis, S. leptopilium, S. leptoscenium, S. medusa, S. octalactis, S. pentalactis, S. rotula, S. triloba, S. umbrella

Sethophormis pentalactis

Citation: Sethophormis pentalactis Haeckel 1887
Rank: species
Type locality: LM19
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type specimens: pl.56, fig.5
Type repository: No information given
Described on page(s) : p.1244

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Current identification/main database link: Lampromitra pentalactis (Haeckel 1887)

Original Description
Cephalis large, flat, hemispherical, with subregular, hexagonal pores. Thorax flat, campanulate, nearly hemispherical; also with subregular, hexagonal pores, and with five stout ribs. The three primary ribs of the thorax are complete, and reach the peristome; the two secondary ribs (as basal branches of the two lateral ribs) are incomplete and absent in the distal half of the thorax. Peristome denticulate, with an elegant marginal corona of small square pores and short conical spines.

Size: Cephalis 0.03 long, 0.06 broad; thorax 0.1 long, 0.2 broad.

Editors' Notes
Haeckel listed Sethophormis pentalactis under the subgeneric name Pentaphormis and uses the other name, Pentaphormis pentalactis, in the figure description.[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 year 1873-1876, Zoology. 18: 1-1803. gs


Sethophormis pentalactis compiled by the radiolaria@mikrotax project team viewed: 19-4-2021

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