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Current identification:
Original Description
Outer shell thick walled, thorny, with regular network; meshes circular, funnel-shaped, its outer aperture elegant, rosette-like, with eight to ten incisions (like Stylosphaera calliope, P1.16, fig. 6); eight to ten meshes on the half equator, three to four times as broad as the bars. Proportion of the longer axis to the shorter = 5: 4. Shorter axis eqnals three times the diameter of the inner spherical shell. Polar spines three-sided pyramidal, about half as long as the shorter axis, as broad at the base as a mesh.
Size: Longer axis of the cortical shell 0.15, shorter 0.12; pores 0.02, bars 0.005; length of the polar spines 0.05, basal breadth 0.02; diameter of the inner shell 0.04.
Editors' Notes
There was no illustration of this species in Haeckel (1887)
Haeckel listed Lithatractus rosetta under the subgeneric name Lithatractylis, but did not include the subgeneric name in the species name.[comment from RadWorld database]
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. gsReferences:
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Lithatractus rosetta compiled by the radiolaria@mikrotax project team viewed: 9-3-2021
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=261958 Go to Archive.is to create a permanent copy of this page - citation notes |