CATALOG OF ORIGINAL DESCRIPTIONS: Semantrum quadrifore 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 -> Semantrum -> Semantrum quadrifore
Other pages this level: S. buetschlii, S. quadrifore, S. signarium, S. sphragisma, S. tetrapylum, S. tetrastoma

Semantrum quadrifore

Citation: Semantrum quadrifore Haeckel 1887
Rank: species
Type specimens: pl.92, fig.5
Type repository: No information given
Described on page(s) : p.958
Family (traditional): Trissocyclidae
Family (modern): Acanthodesmiidae

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Current identification:

Original Description
Sagittal ring subcircular or ovate, with three edges and four sagittal forked spines on the odd edge (two dorsal and two ventral spines). Basal ring decagonal, with ten simple or forked spines on the ten corners. Jugular gates tetragonal Cardinal gates pentagonal

Height of the sagittal ring 90µm, breadth 70µm.


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


Semantrum quadrifore compiled by the radiolaria@mikrotax project team viewed: 7-3-2021

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