radiolaria - rads_cat - Tripocyrtis pteides radiolaria - rads_cat - Tripocyrtis pteides

CATALOG OF ORIGINAL DESCRIPTIONS: Tripocyrtis pteides Renz 1976

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 -> T -> Tripocyrtis -> Tripocyrtis pteides
Other pages this level: T. curtidiscus, T. plagoniscus, T. plectaniscus, T. pteides, T. tripodiscus

Tripocyrtis pteides

Citation: Tripocyrtis pteides Renz 1976
Taxonomic rank: species
Type age (chronostrat): Recent
Type locality: 11° N, 155°W, plankton, 50-75 m

Current identification/main database link: Stichopilium pteides (Renz 1976)


Original Description

Description: Shell two-segmented; pyramidal. Three complete thoracic ribs extend from the collar stricture and are prolonged at the peristome into three short, triangular, latticed feet. Cephalis obtuse, conical with two divergent, three-bladed, apical horns. Thoracic pores irregularly rounded, disposed in checkerboard fashion.

Dimensions: (4 specimens); length: 164-188 µ, Md 178; maximum breadth: 144- 164 µ, Md 156; feet: 16-20 µ, Md (18).

Type locality: 11° N, 155°W, plankton, 50-75 m.

Remarks: This species bears some similarity to Dictyocodon palladius but differs from it by the absence of an abdomen and the fine gauze type of meshwork typical for D. palladius. The cephalic structure is also very different. T. pteides differs from the other species in the genus by its cephalis to thorax ratio (1:6 vs. 1:2, 1:4, and 1:2), its simple double apical spines, and its very small and simple latticed feet. The specific name pteides is an anagram of the word pedites meaning feet.

References:

Renz, G. W. (1976). The distribution and ecology of Radiolaria in the central Pacific: plankton and surface sediments. Bulletin of the Scripps Institution of Oceanography. 22: 1-267. gs


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Tripocyrtis pteides compiled by the radiolaria@mikrotax project team viewed: 11-6-2026

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