CATALOG OF ORIGINAL DESCRIPTIONS: Actinomma capillaceum 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 -> A -> Actinomma -> Actinomma capillaceum
Other pages this level: A. aculata, A. aculeatum, A. acusosum, A. aequale, A. anomalum, A. antarctica, A. anthomma, A. appenninicum, A. arcadophorum, A. boreale, A. brevispiculum, A. campilacantha, A. capillaceum, A. castanomma, A. cocles, A. comitatum, A. daturaeformis, A. denticulatum, A. dodecomma, A. doratos, A. echinoideum, A. elaborata, A. eldredgei, A. ellipticum, A. entactinia, A. erinaceum, A. eriosperma, A. facetum> >>

Actinomma capillaceum

Citation: Actinomma capillaceum Haeckel 1887
Rank: species
Type specimens: pl.29, fig.6
Type repository: No information given
Described on page(s) : p.255
Family (traditional): Actinommidae
Family (modern): Actinommidae

<% linkedspecs %>

Current identification/main database link: Actinomma capillaceum Haeckel 1887

Original Description
Cortical shell very thin walled, with irregular, polygonal meshes (sixteen to eighteen on the radius), three to six times as broad as the bars. Both medullary shells with smaller pores of the same structure. Radial proportion of the three spheres = 1: 2.5: 7; radial connecting beams between them very thin and numerous (one hundred and twenty to one hundred and fifty or more), each prolonged outside into a short three-sided pyramidal spine, as long as the radius of the inner shell. (Similar to Haliomma capillaceum.)

Diameter of the outer shell 270µm, middle 100µm, inner 40µm; cortical pores 10 to 20µm, bars 3µm; length of the spines 20µm, basal breadth 5µm.

Editors' Notes
Haeckel listed Actinomma capillaceum under the subgeneric name Actinommura, but did not include the subgeneric name in the species name.


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


Actinomma capillaceum compiled by the radiolaria@mikrotax project team viewed: 1-3-2021

Taxon Search:
Advanced Search

Short stable 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