CATALOG OF ORIGINAL DESCRIPTIONS: Pterocorys irregularis Cleve 1899

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 -> P -> Pterocorys -> Pterocorys irregularis
Other pages this level: P. amblycephalis, P. aquila, P. bicornis, P. campanula, P. campanula variabilis, P. columba, P. conica, P. diplotriaena, P. gamphonyxos, P. hirundo, P. irregularis, P. korotnevi, P. longicollis, P. longicornis, P. macroptera, P. melitta, P. pipetta, P. prismatica, P. rhinoceros, P. schewiakovi, P. splendens, P. splendens albatrossensis, P. theoconus, P. tricornis, P. tubulosa

Pterocorys irregularis

Citation: Pterocorys irregularis Cleve 1899
Rank: species
Type specimens: pl.4, fig.1
Type repository: No information given
Described on page(s) : p.32
Family (traditional): Plagiacanthidae
Family (modern): Lophophaenidae

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Current identification/main database link: Lipmanella irregularis (Cleve) Loeblich and Tappan 1961

Original Description
Cephalis nearly spherical, with one apical and one lateral horn. Its pores small and indistinct. Thorax with three strong, downwards directed horns, as long as the breadth of the thorax. Pores rounded, as broad as the bars, variable in size (2-6µm. in diameter) and scattered without order. The upper part of the thorax provided with some few spines. Abdomen not distinctly separated from the thorax. Its pores similar to those of the thorax.

Length of cephalis 30µm, of thorax 70µm, of abdomen 40µm. Breadth of thorax 70µm., of abdomen 80µm.
A single specimen.

The nearest allied form seems to be P. columba.

Editors' Notes
Habitat: Between Shetlands and Norway, surface, March 1898.


Cleve, P. T. (1899). Plankton collected by the Swedish expedition to Spitzbergen in 1898. Kongliga Svenska Vetenskaps-Akademiens Handlingar. 32(3): 1-51. gs


Pterocorys irregularis compiled by the radiolaria@mikrotax project team viewed: 14-4-2021

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