arrayname: original 
radiolaria - rads_cat - Chitonastrum lyra radiolaria - rads_cat - Chitonastrum lyra

CATALOG OF ORIGINAL DESCRIPTIONS: Chitonastrum lyra 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 -> Chitonastrum -> Chitonastrum lyra
Other pages this level: C. bathybium, C. dicranodes, C. jugatum, C. lyra, C. triglochin

Chitonastrum lyra

Citation: Chitonastrum lyra Haeckel 1887
Taxonomic rank: species
Described on page(s) : p.538
Type specimens: pl.43, fig.15
Type repository: No information given
Family (traditional): Spongodiscidae
Family (modern): Euchitoniidae

Current identification:


Original Description

All three arms forked and nearly of the same size, but different in form and position. The distance between the branches of the two paired arms is only one-fourth of the distance between them and the odd arm. Each arm in the basal two-thirds is simple, with eleven to twelve transverse septa, in the distal third forked, each branch with four to five transverse septa. The branches of each arm are curved convexly one to another, ending obtusely. The axis of the simple proximal part is straight in the odd arm, in the paired arms curved concavely towards the middle line. In the figured specimen, which I observed living in Portofino (in September 1880), the central chamber of the central disk and the first surrounding ring were filled with the nucleus of the cell; both external rings were filled (like all chambers of the arms) with pink oil-globules of the red central capsule. From the mantle, enveloping the shell, radiated innumerable fine pseudopodia (much too short in the figure), and between the two paired arms a long "sarcode-flagellum".

Radius of each arm 0.16; greatest breadth of the odd arm 0.04; basal breadth of the paired arms 0.02; distance of both branches of each arm 0.08. [dimensions in mm]

Editors' Notes
Haeckel listed Chitonastrum lyra under the subgeneric name Chitonastromma, but did not include the subgeneric name in the species name.

References:

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


logo

Chitonastrum lyra compiled by the radiolaria@mikrotax project team viewed: 23-3-2025

Taxon Search:
Advanced Search

Short stable page link: https://mikrotax.org/radiolaria/index.php?id=250579 Go to Archive.is to create a permanent copy of this page - citation notes



Add Comment

* Required information
Captcha Image

Comments

No comments yet. Be the first!