radiolaria - rads_cat - Cromyomma perspicuum radiolaria - rads_cat - Cromyomma perspicuum

CATALOG OF ORIGINAL DESCRIPTIONS: Cromyomma perspicuum Haeckel 1887

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 -> C -> Cromyomma -> Cromyomma perspicuum
Other pages this level: C. circumtextum, C. macroporum, C. mucronatum, C. perplexum, C. perspicuum, C. riedeli, C. spinulosa, C. tuberculata, C. villosum

Cromyomma perspicuum

Citation: Cromyomma perspicuum Haeckel 1887
Rank: species
Described on page(s) : p.262
Type specimens: pl.30, fig.8
Type repository: No information given
Family (traditional): Actinommidae
Family (modern): Actinommidae

Current identification:

Original Description

Radial proportion of the four shells = 1: 2.5: 6: 9. Outer cortical shell very thin walled, with thread-like bars, and irregular, polygonal pores; inner cortical shell with similar pores, but with thicker bars. Both medullary shells with regular, circular pores (the outer three times as broad as the inner). Numerous thin radial beams connect the latter with the former; other very thin and numerous beams connect the two cortical shells, and are prolonged outside into short bristle shaped spines (often longer than in the figure).
Diameter of the four shells - (A) 0.18, (B) 0.12, (C) 0.05, (D) 0.02; pores of the outer shell 0.01 to 0.02; length of the spines 0.01 to 0.03.

Editors' Notes
Haeckel listed Cromyomma perspicuum under the subgeneric name Cromyommura , but did not include the subgeneric name in the species name.


Haeckel, E (1887a). 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 years 1873-1876. 18: 1-1803. gs O


Cromyomma perspicuum compiled by the radiolaria@mikrotax project team viewed: 29-5-2023

Taxon Search:
Advanced Search
AphiaID: not found
Short stables page link: Go to to create a permanent copy of this page - citation notes

Comments (0)

No comments yet on this page. Please do add comments if you spot any problems, or have information to share

Add Comment

* Required information
Captcha Image
Powered by Commentics