Zoniscus tetracanthus Haeckel 1887.jpg
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Zoniscus tetracanthus Haeckel 1887.jpg<% linkedspecs %>
Current identification:
Original Description
Cortical shell nearly quadrangular, one and a half times as long as broad, with four prominent corners, from which arise in the lateral plane four strong, three-sided pyramidal radial spines (opposite in pairs in two crossed diagonal axes). Surface thorny, with exception of the concave lateral sides. Sagittal constriction two and a half times as long as the hexagonal medullary shell. Both equatorial cupolas scarcely half as large as the four corner cupolas.
Size: Length of the cortical shell 0.18, breadth 0.12; length of the medullary shell 0.07, breadth 0.04.
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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Zoniscus tetracanthus compiled by the radiolaria@mikrotax project team viewed: 1-3-2021
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