CATALOG OF ORIGINAL DESCRIPTIONS: Lithatractus echiniscus 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 -> Lithatractus -> Lithatractus echiniscus
Other pages this level: L. birostratus, L. carduelis, L. cirsium, L. conifer, L. conostylus, L. convallaria, L. echiniscus, L. floridus, L. fragilis, L. gamoporus, L. hederae, L. hexagonalis, L. jugatus, L. leptostylus, L. lobatus, L. miocaenica, L. nucleolus, L. nuphar, L. pachystylus, L. pierinae, L. pterosphaerus, L. rosetta, L. santaeannae, L. santaeannae pusillus, L. timmsi, L. timmsi quadrispinus

Lithatractus echiniscus

Citation: Lithatractus echiniscus Haeckel 1887
Rank: species
Type repository: No information given
Described on page(s) : p.321
Family (traditional): Actinommidae
Family (modern): Amphisphaeridae

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Current identification:


Original Description
Outer shell thorny, thin walled, with regular network; meshes circular, with hexagonal frame, four to five times as broad as the thin bars; eighteen to twenty on the half equator. From every corner between the three meshes, where three hexagons unite, starts one short, straight, triangular thorn (as in Ellipsoxiphus elegans, Pl. 14, fig. 7). Proportion of the major axis of the ellipsoid to the minor = 4: 3. Minor axis twice the diameter of the inner spherical shell, the pores of which are half as broad, circular. Polar spines three-sided pyramidal, about as long as the minor axis, as broad at the base as one hexagonal frame.

Longer axis of the cortical shell 0.08, shorter axis = 0.06; pores 0.004, bars 0.001; length of the polar spines 0.05, basal thickness 0.005; diameter of the inner shell 0.03.

Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Lithatractus echiniscus under the subgeneric name Lithatractylis, but did not include the subgeneric name in the species name.

Description: "Pl.14, fig.7" illustrates Ellipsoxiphus elegans Haeckel var. palliatus Haeckel, 1887a.

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 year 1873-1876, Zoology. 18: 1-1803. gs


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Lithatractus echiniscus compiled by the radiolaria@mikrotax project team viewed: 7-3-2021

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Short stable page link: https://mikrotax.org/radiolaria/index.php?id=251588 Go to Archive.is to create a permanent copy of this page - citation notes



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