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radiolaria - rads_cat - Theocyrtis macrocerosradiolaria - rads_cat - Theocyrtis macroceros
CATALOG OF ORIGINAL DESCRIPTIONS: Theocyrtis macroceros 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.
Citation: Theocyrtis macroceros Haeckel 1887Taxonomic rank: speciesDescribed on page(s) : p.1407Type specimens: pl.69, fig.13Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]Type locality: LM191; LL23Type repository: No information given
Current identification:
Original Description Shell almost cylindrical, smooth. Length of the three joints = 1: 2: 5, breadth = 2: 3: 4. Cephalis hemispherical, with a very large cylindrical horn, once or twice as long as the shell. Thorax truncate, hemispherical. Abdomen cylindrical, only slightly contracted towards both ends. Two girdle strictures deep. Pores small, subregular, circular, more irregular and twice to three times as large in the abdomen as in the thorax, disposed in transverse rows, five to six in the thorax, eight to ten in the abdomen. Size: Length of the three joints, a 0.02 to 0.03, b 0.04 to 0.05, c 0.1 to 0.12; breadth, a 0.04, b 0.07, c 0.08. Editors' Notes Haeckel listed Theocyrtis macroceros under the subgeneric name Theocorusca, but did not include the subgeneric name in the species name.[comment from RadWorld database]
References:
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. gsO
Theocyrtis macroceros compiled by the radiolaria@mikrotax project teamviewed: 23-1-2025
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Theocyrtis macroceros Haeckel 1887.jpg
Theocyrtis macroceros Haeckel 1887.jpg
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