radiolaria - rads_cat - Spirocyrtis holospira radiolaria - rads_cat - Spirocyrtis holospira

CATALOG OF ORIGINAL DESCRIPTIONS: Spirocyrtis holospira 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 -> Spirocyrtis -> Spirocyrtis holospira
Other pages this level: S. cornutella, S. diplospira, S. elegans, S. greeni, S. gyroscalaris, S. hemispira, S. hollisi, S. holospira, S. merospira, S. parvaturris, S. proboscis, S. scalaris, S. submerospira, S. subscalaris, S. subtilis

Spirocyrtis holospira

Citation: Spirocyrtis holospira Haeckel 1887
taxonomic rank: species
Described on page(s) : p.1509
Type specimens: pl.76, fig.16
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type locality: LM28
Type repository: No information given

Current identification:

Original Description

Shell subovate, twice as long as broad, without external strictures, but with an internal regularly descending spiral septum, which separates seven to nine broad joints of nearly equal lengths; the first and second joints together are conical, and about as long as each of the following joints. Cephalis small, hemispherical, with a thick pyramidal horn of the same length. The fifth joint is the broadest, the truncate month is slightly constricted (in the specimen figured it is broken off). Pores regular, circular, quincuncial.

Length of the shell (with eight joints) 0.2, breadth 0.1; length of each joint, about 0.03.

Editors' Notes
Haeckel listed Spirocyrtis holospira under the subgeneric name Spirocyrtoma, 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 O


Spirocyrtis holospira compiled by the radiolaria@mikrotax project team viewed: 25-6-2024

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