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Frontal ring kidney-shaped, in the upper half convex, in the lower half concave; in the latter with a deep sagittal constriction, armed with numerous irregular short spines. Sagittal ring thicker and lower, only two-thirds as high, with four pairs of short divergent spines (two ventral and two dorsal pairs).
Size: Height of the frontal ring 0.13, breadth 0.2.
There was no illustration of this species in Haeckel (1887)
Haeckel listed Zygostephanus reniformis under the subgeneric name Zygostephaniscus, 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. gs
Zygostephanus reniformis compiled by the radiolaria@mikrotax project team viewed: 3-3-2021
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=262353 Go to Archive.is to create a permanent copy of this page - citation notes