radiolaria - rads_cat - Spirocyrtis diplospira radiolaria - rads_cat - Spirocyrtis diplospira

CATALOG OF ORIGINAL DESCRIPTIONS: Spirocyrtis diplospira 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 diplospira
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 diplospira

Citation: Spirocyrtis diplospira Haeckel 1887
Rank: species
Described on page(s) : p.1510
Type specimens: pl.76, fig.17
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

Shell slender, ovate, with seven to eight slight strictures. All eight or nine joints are connected by an internal double spiral septum, the first spiral beginning from the ventral side, the second from the dorsal side of the collar stricture. Length and breadth of the single joints rather variable and irregular; the broadest joint is commonly the fifth. Mouth more or less constricted. Pores subregular, circular. This remarkable species differs from all other Cyrtoidea by the double spiral septum of the joints.

Length of the shell (with eight joints) 0.2, breadth 0.1.

Editors' Notes
Haeckel listed Spirocyrtis diplospira under the subgeneric name Spirocyrtoma, but did not include the subgeneric name in the species name.[comment from RadWorld database]


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


Spirocyrtis diplospira compiled by the radiolaria@mikrotax project team viewed: 1-6-2023

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