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Shell pear-shaped, rough, with sharp collar stricture. Length of the two joints = 2: 10, breadth = 3: 8. Cephalis subspherical, with very small pores and a small, pyramidal horn of half the length. Thorax inflate, ovate; in the uppermost part (beyond the collar stricture) with a ring of six to nine very large roundish pores, which are twice to four times as broad as the other irregular, roundish pores. (The shell is seen in fig. 11 from the apical pole, in fig. 11a with the cephalis, in fig 11b without it, exhibiting the four central collar pores of the cortinar septum.) Mouth truncate, without prominent peristome.
Size: Cephalis 0.02 long, 0.03 broad; thorax 0.1 long, 0.08 broad.
In description for \figs. 11, a, b" read "figs. 11, 11a"."[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
Sethocyrtis agamemnonis compiled by the radiolaria@mikrotax project team viewed: 25-2-2021
Short stable page link: https://mikrotax.org/radiolaria/index.php?id=261361 Go to Archive.is to create a permanent copy of this page - citation notes