Stylaster
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Ordo: Filifera
Familia: Stylasteridae
Name
Stylaster Gray, 1831 – Wikispecies link – Pensoft Profile
Diagnosis
Colonies branching in a flabellum or a bush shape (in only one case lamellate). Coenosteum usually reticulate-granular but may be linear-imbricate; coenosteum of many colors and hardness. Gastro- and dactylopores arranged in conventional cyclosystem arrangement, with only one gastrostyle per cyclosystem; pores of the peripheral type; supernumerary dactylopores often present. Cyclosystems arranged on branch edges and/or on corallum faces, or uniformly on all branch surfaces, but not unifacially. Gastropore tube single-chambered, but may be constricted by a ring palisade. Dactylostyles present. Ampullae usually superficial.
Discussion
The genus and its various grouping are discussed by Cairns (1983b)[1] and a key to all stylasterid genera, including the groups of Stylaster, is provided by Cairns (1992)[2]. Currently there are 80 recognized Recent species and 7 fossil species (Appeltans et al. 2011[3]: WoRMS data base: www.marinespecies.org). It is by far the most species-rich and diverse genus of the stylasterids.
Type species
Madrepora roseus Pallas, 1766, by subsequent designation (Milne Edwards and Haime 1850[4]: xxii), a member of Group B.
Distribution
Oligocene to Recent: cosmopolitan from depths of 0-2010 m (Cairns 1992[2]; Appeltans et al. 2011[3]).
Taxon Treatment
- Cairns, S; Lindner, A; 2011: A Revision of the Stylasteridae (Cnidaria, Hydrozoa, Filifera) from Alaska and Adjacent Waters ZooKeys, 158: 1-88. doi
Other References
- ↑ Cairns S (1983b) A generic revision of the Stylasterina (Coelenterata: Hydrozoa). Part 1. Description of the genera. Bulletin of Marine Science 33 (2): 427-508.
- ↑ 2.0 2.1 Cairns S (1992) A generic revision of the Stylasteridae (Coelenterata: Hydrozoa). Part 3. Keys to the genera. Bulletin of Marine Science 49(1–2): 538-545.
- ↑ 3.0 3.1 Appeltans W, Bouchet P, Boxshall G, Fauchald K, Gordon D, Hoeksama B, Poore G, van Soest R, Stohr S, Walter T, Costello M (2001) World Register of Marine Species. www.marinespecies.org [Accessed on 2011.09.19]
- ↑ Milne Edwards H, Haime J (1850) Introduction In: A Monograph of the British Fossil Corals. Part 1. Paleontographical Society, London, i-lxxxv.
