Homaxinella
| Homaxinella | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Porifera |
| Class: | Demospongiae |
| Order: | Hadromerida |
| Family: | Suberitidae |
| Genus: | Homaxinella Topsent, 1916 [1] |
| Species: | see text |
| Synonyms | |
| |
Homaxinella is a genus of sea sponges, demosponges in the family Suberitidae. The type species is Homaxinella balfourensis.[2]
Description
Homaxinella was originally included in the sponge family Axinellidae but the structure of the skeleton shows that it lacks a reticulation and has bundles of calcareous spicules at the surface which led to its inclusion in Suberitidae.[2] The members of the genus are rooted to the substrate and have stalks, a much branched habit of growth and an axially condensed choanosomal skeleton. They have an extra-axial skeleton of bundles of megascleres which are exclusively styles, and a profusion of further incoherently arranged styles, in a wide range of sizes. There are no microscleres.[2]
Species
The World Porifera Database recognises the following species:[1]
- Homaxinella balfourensis (Ridley & Dendy, 1886)
- Homaxinella brevistyla Hoshino, 1981
- Homaxinella ensifera (Lamarck, 1815)
- Homaxinella erecta (Brøndsted, 1924)
- Homaxinella flagelliformis (Ridley & Dendy, 1886)
- Homaxinella infundibula Tanita & Hoshino, 1989
- Homaxinella ramosimassa Tanita & Hoshino, 1989
- Homaxinella subdola (Bowerbank, 1866)
- Homaxinella tanitai Hoshino, 1981
References
- 1 2 van Soest, Rob (2006). R. W. M. Van Soest, N. Boury-Esnault, J. N. A. Hooper, K. Rützler, N. J. de Voogd, B. Alvarez de Glasby, E. Hajdu, A. B. Pisera, R. Manconi, C. Schoenberg, D. Janussen, K. R. Tabachnick, M. Klautau, B. Picton, M. Kelly & J. Vacelet, eds. "Homaxinella Topsent, 1916". World Porifera database. World Register of Marine Species. Retrieved 2012-02-24.
- 1 2 3 Hooper, John N. A.; R. W. M. van Soest; Philippe Willenz. Systema Porifera: a guide to the classification of sponges, Volume 1. Google Books. p. 231.