| Sticholonche | |
|---|---|
 | |
Scientific classification | |
| Domain: | Eukaryota |
| Clade: | Diaphoretickes |
| Clade: | SAR |
| Clade: | Rhizaria |
| Phylum: | Retaria |
| Class: | Sticholonchea (Poche 1913) Petrushevskaya 1977[1] |
| Order: | Taxopodida Hertwig 1877 |
| Genus: | Sticholonche Hertwig 1877 |
| Species: | S. zanclea |
| Binomial name | |
| Sticholonche zanclea Hertwig, 1877 | |
Sticholonche is a genus ofradiolarians with a single species,Sticholonche zanclea, found in openoceans at depths of 99–510 metres. It is generally considered aheliozoan, placed in its own order, called theTaxopodida. However it has also been classified as an unusual radiolarian, and this has gained support from genetic studies, which place it near theAcantharea.[2]
Sticholonche are usually around 200μm, though this varies considerably, and have a bilaterally symmetric shape, somewhat flattened and widened at the front. Theaxopods are arranged into distinct rows, six of which lie in a dorsal groove and are rigid, and the rest of which are mobile. These are used primarily for buoyancy, rather than feeding. They also have fourteen groups of prominent spines, and many smallerspicules, although there is no central capsule as in true radiolarians.
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