Rossellidae is a family of glass sponges belonging to the order
Lyssacinosa
Lyssacinosida is an order of glass sponges belonging to the subclass Hexasterophora. These sponges can be recognized by the parenchymal spicule
Spicules are any of various small needle-like anatomical structures occurring in organisms
Spicule ...
. The family has a
cosmopolitan distribution and is found at a large range of depths (, and likely deeper).
Description
The body is usually a cup-like structure. In stalked forms the body can be mushroom-like.
Spicules
Spicules are any of various small needle-like anatomical structures occurring in organisms
Spicule may also refer to:
*Spicule (sponge), small skeletal elements of sea sponges
*Spicule (nematode), reproductive structures found in male nematodes ( ...
protruding beyond the sponge surface, when present, are diactines (spicules with two pointed arms) or specialised outwardly protruding hypodermal pentactines (five pointed spicules).
The choanosomal skeleton consists of diactines, sometimes together with less frequent hexactines (spicules with six prongs). A large variety of microscleres occur in this family, including a variety of holactinoidal and asterous spicules.
Subfamilies and genera
,
WoRMS Worms may refer to:
*Worm, an invertebrate animal with a tube-like body and no limbs
Places
*Worms, Germany
Worms () is a city in Rhineland-Palatinate, Germany, situated on the Upper Rhine about south-southwest of Frankfurt am Main. It had ...
recognizes three subfamilies and twenty-six genera in the family:
* Subfamily
Acanthascinae
**
Acanthascus
**
Rhabdocalyptus
**
Staurocalyptus
''Staurocalyptus'' is a genus of sponge. It was circumscribed in 1897 by Isao Ijima.
Taxonomy
Ijima circumscribed ''Staurocalyptus'' as a genus in the family Rossellidae. His initial taxonomy included three newly described species and two tr ...
* Subfamily
Lanuginellinae
**
Calycosoma
**
Caulophacus
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Doconesthes
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Lanuginella
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Lanugonychia
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Lophocalyx
**
Mellonympha
**
Sympagella
* Subfamily
Rossellinae
**
Anoxycalyx
**
Aphorme
**
Asconema
**
Aulosaccus
**
Bathydorus
**
Crateromorpha
**
Hyalascus
**
Nodastrella
**
Rossella
**
Schaudinnia
**
Scyphidium
**
Symplectella
**
Trichasterina
**
Vazella
**
Vitrollula
References
Further reading
* Dohrmann, M. ; C. Göcke ; J. Reed & D. Janussen, 2012: Integrative taxonomy justifies a new genus, Nodastrella gen. nov., for North Atlantic "Rossella" species (Porifera: Hexactinellida: Rossellidae). Zootaxa 3383: 1-13.
* Sautya, S.; Tabachnick, K.R.; Ingole, B. 2010: First record of Hyalascus (Hexactinellida: Rossellidae) from the Indian Ocean, with description of a new species from a volcanic seamount in the Andaman Sea. Zootaxa, 2667: 64-68
External links
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*
Hexactinellida
Sponge families
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