radiolaria - rads_cat - Sethoconus rayianus radiolaria - rads_cat - Sethoconus rayianus

CATALOG OF ORIGINAL DESCRIPTIONS: Sethoconus rayianus 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 -> S -> Sethoconus -> Sethoconus rayianus
Other pages this level: S. anthocyrtis, S. bimarginatus, S. conicus, S. crinitus, S. dogieli, S. facetus, S. galea, S. hexagonalis, S. hyalinus, S. lophophaena, S. martini, S. myxobrachia, S. orthoceras, S. parvus, S. pileus, S. rayianus, S. reschetnjakae, S. setosus, S. subtilis, S. venosus, S. virgultus, S. woodfordi, S. woodfordi advena

Sethoconus rayianus

Citation: Sethoconus rayianus Haeckel 1887
taxonomic rank: species
Described on page(s) : p.1291
Type specimens: pl.58, fig.6
Type repository: No information given
Family (traditional): Plagiacanthidae
Family (modern): Theopilidae

Current identification:

Original Description

Cephalis ovate, with obliterated collar stricture (but distinct internal septum), with small, irregular pores, and two to four divergent horns, which are longer than the cephalis, and two or three of which are forked. Thorax tent-shaped, conical, two-thirds as long as broad, with slightly concave outlines, and subregular, hexagonal pores, gradually increasing towards the mouth, the largest half as broad as the cephalis. 

Cephalis 30µm long, 20µm broad; thorax 80µm long, 120µm broad.

This elegant species is dedicated to Dr. Ray, the discoverer of many rare Radiolarians in the Challenger collection.

Extra details from original publication
Habitat: Central Pacific, Stations 266 to 272, surface

Editors' Notes
Haeckel listed Sethoconus rayianus under the subgeneric name Conarachnium, but did not include the subgeneric name in the species name.
In the figure description for Sethoconus capreolus read Sethoconus rayianus - i.e. Haeckel changed his mind on the species name during publication.
Synonymized with Corocalyptra cervus (Ehrenberg) by Popofsky 1913, p.383]


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 years 1873-1876. 18: 1-1803. gs O


Sethoconus rayianus compiled by the radiolaria@mikrotax project team viewed: 3-3-2024

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