radiolaria - rads_cat - Larnacantha dodecantha radiolaria - rads_cat - Larnacantha dodecantha

CATALOG OF ORIGINAL DESCRIPTIONS: Larnacantha dodecantha 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 -> L -> Larnacantha -> Larnacantha dodecantha
Other pages this level: L. bicruciata, L. cladacantha, L. decacantha, L. dissacantha, L. dodecantha, L. drymacantha, L. hexacantha, L. octacantha, L. polyacantha, L. prismatica, L. quadricornis, L. stauracantha

Larnacantha dodecantha

Citation: Larnacantha dodecantha Haeckel 1887
taxonomic rank: species
Described on page(s) : p.624
Type age (chronostrat): [presumably Quaternary though some forms reported from this station appear to be Tertiary]
Type locality: LM17
Type repository: No information given

Current identification:


Original Description

Cortical shell nearly smooth, but with twelve strong conical radial spines; four in the lateral plane opposite in pairs (two on the poles of the principal, and two on the poles of the transverse axis); eight others opposite in pairs in two crossed diagonal planes. Pores with a peculiar disposition: twelve large elliptical pores in two crossed meridian planes (alternating with the twelve spines), separated by bands of irregular small pores. Proportion of the three axes = 1: 1.5: 2. Medullary shell hexagonal, one-third as long as the cortical shell.

Size:
Length of the cortical shell 0.15, breadth 0.11, height 0.08; large pores 0.03, small pores 0.005 to 0.01, bars 0.003; length of the medullary shell 0.05.

Editors' Notes
There was no illustration of this species in Haeckel (1887)

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. gs O


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Larnacantha dodecantha compiled by the radiolaria@mikrotax project team viewed: 18-4-2024

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