CATALOG OF ORIGINAL DESCRIPTIONS: Actinomma fenestratum Stöhr 1880

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 fenestratum
Other pages this level: << < 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, A. fenestratum, A. friedrichdreyeri, A. georgii, A. gigantea, A. giganteum, A. golownini, A. haysi, A. henningsmoeni, A. heptacanthum, A. hexactis, A. hexagonium, A. hirsutum, A. holtedahli, A. imperfecta, A. intermedium, A. japonicum> >>

Actinomma fenestratum

Citation: Actinomma fenestratum Stöhr 1880
Rank: species
Type specimens: pl.3, fig.2
Type repository: No information given
Described on page(s) : p.94
Family (traditional): Litheliidae
Family (modern): Larnacillidae

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Current identification:

Original Description
Drei Ellipsoide in einander geschachtelt, deren längste Durchmesser sich verhalten wie 1: 2¼: 4. Die Rindenschalendurchmesser verhalten sich wie 8: 9. Sie ist rauh und sind ihre runden regelmässigen Maschen 1/30 so gross wie der Längsdurchmesser der Schale; mit der ersten innern Markschale ist sie verbunden durch radialbalken, 14 (?) an Zahl, wie auch letztere mit der innersten durch gleiche Radialbalken; die Maschen der ersten Markschale gross und elliptisch.
[Three encased ellipsoidal shells, with long axes as 1: 2¼: 4. Axes of the cortical shell as 8: 9. Surface rough with regular circular pores 1/30 as large as the long axis of the shell, linked with the medullary shell with 14 (?) radial beams, pores on the median shell large and ellipsoidal. (Translation from German by J.P.C.)]

Cortical shell axes 150 and 133µm, median shell axes 90 and 73µm, medullary shell axes 38 and 30µm. Cortical shell pores 5µm, ellipsoidal pores of the median shell 15µm, bars width 6µm.
Not common.

Etymology: fenestratus, -a, -um = with window

Editors' Notes
Premature name in Stöhr, 1878 [2713:515]

According to the description the illustration (pl.3, fig.2) given here might more appropriately appear in the revised species description record for Actinomma crenatum (Ehrenberg) in Stöhr 1880 and the illustration on that record (pl.3, fig.3) appear in this record.


Stöhr, E. (1880). Die Radiolarienfauna der Tripoli von Grotte, Provinz Girgenti in Sicilien. Palaeontographica N. F.. 6(4): 71-121. gs


Actinomma fenestratum compiled by the radiolaria@mikrotax project team viewed: 14-5-2021

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