radiolaria - rads_cat - Siphonosphaera socialis radiolaria - rads_cat - Siphonosphaera socialis

CATALOG OF ORIGINAL DESCRIPTIONS: Siphonosphaera socialis 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 -> Siphonosphaera -> Siphonosphaera socialis
Other pages this level: << < S. minima, S. minima laevigata, S. monotubulosa, S. pansiphonia, S. paradoxa, S. paraphoros, S. patinaria, S. pericyclis, S. pipetta, S. polypora, S. polysiphonia, S. preveriana, S. rariporata, S. schottii, S. serpula, S. socialis, S. socialis mazosphaeroides, S. socialis tubuliloba, S. squinaboli, S. tenera, S. trizardi, S. tubulosa, S. vesuvius

Siphonosphaera socialis

Citation: Siphonosphaera socialis Haeckel 1887
taxonomic rank: species
Described on page(s) : p.106
Type specimens: pl.6, figs.1, 2
Type repository: No information given
Family (traditional): Collosphaeridae
Family (modern): Collosphaeridae

Current identification/main database link: Siphonosphaera socialis Haeckel 1887

Original Description

Shell a regular or subregular sphere, bearing only a small number (one to four, commonly two to three) of short and broad cylindrical tubules, irregularly scattered. Between them many small circular or subcircular pores of different sizes, double as broad as their bars. Eight to ten pores in the half meridian of the shell. Tubules three to six times as broad as the pores, about as long as broad, now quite cylindrical, now somewhat dilated at the outer opening (Although the shells and cells of this common species are among the smallest, their colonies are among the largest, often containing more than one hundred social individuals, often enclosed in alveoles.)

Diameter of the shell 40 to 50µm, of the pores 2 to 4µm, of the tubules 15 to 20µm; length of them about the same.

Editors' Notes
very common

Haeckel listed Siphonosphaera socialis under the subgeneric name Merosiphonia, but did not include the subgeneric name in the species name.


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


Siphonosphaera socialis compiled by the radiolaria@mikrotax project team viewed: 27-5-2024

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