Magapiidae

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Magapiidae
Systematics
Trunk : Cnidarians (Cnidaria)
Class : Hydrozoa (Hydrozoa)
Subclass : Leptolinae
Order : Anthomedusae
Subordination : Filifera
Family : Magapiidae
Scientific name
Magapiidae
Schuchert & Bouillon , 2009

The Magapiidae are a family of marine hydrozoas (Hydrozoa). Five species are currently known, which are divided into four genera.

features

The hydroid polyps are unknown. The medusa has a screen that is divided by radial pits or similar structures. There are four radial channels, the ring channel has receded. The solid tentacles start relatively high above the edge of the screen (up to about halfway up the screen). The tentacles can use exumbrellaren nematocysts bands or Zilienfeldern alternate. The manubrium is relatively simple, roughly square tubular or conical, and can extend over the lower edge of the screen. The mouth opening is rounded to almost square. The gonads are attached to the manubrium in four places, either as a clump or as a border of interradial pockets on the manubrium. There are no ocelli . The cnidome consists of macrobasic mastigophores or macrobasic euryteles.

Geographical occurrence

The five species come from the waters off Hong Kong (China), New Zealand , and Papua New Guinea .

Systematics

The original type genus of the Laingia Bouillon family , 1978, has already been assigned an insect genus by Laingia Theobald, 1922. Peter Schuchert and Jean Bouillon therefore nominated the genus in 2009 in Magapia . nov. renamed. Due to the homonymy of the type genus, the family name Laingiidae Bouillon, 1978 became invalid. It was also replaced by Peter Schuchert and Jean Bouillon, by Magapiidae. In 1978 Jean Bouillon even proposed a subclass Laingiomedusae for the family. In the Hydrozoa Directory and Daly et al. (2007) they are treated as the Filifera family.

The family is consistently assigned three genres in the publications mentioned. However, a fourth genus of this family was described in 2006, which is not yet listed in the "Hydrozoa Directory". The genus Fabienna Schuchert, 1996 is now assigned to the family Proboscidactylidae .

swell

literature

  • Jean Bouillon: Hydroméduses de la mer de Bismarck (Papouasie, Nouvelle-Guinée). II. Limnomedusa, Narcomedusa, Trachymedusa et Laingiomedusa (sous-classe nov.). Cahiers de Biologie Marine, 19, 473-483, Paris.
  • Marymegan Daly, Mercer R. Brugler, Paulyn Cartwright, Allen G. Collin, Michael N. Dawson, Daphne G. Fautin, Scott C. France, Catherine S. McFadden, Dennis M. Opresko, Estefania Rodriguez, Sandra L. Romano & Joel L. Stake: The phylum Cnidaria: A review of phylogenetic patterns and diversity 300 years after Linnaeus. Zootaxa, 1668: 127-182, Wellington 2007 ISSN  1175-5326 Abstract - PDF
  • Peter Schuchert and Jean Bouillon: Magapia, nom. nov., replacing Laingia Bouillon, 1978, and Magapiidae, nom. nov., replacing Laingiidae Bouillon, 1978 (Cnidaria, Hydrozoa). Revue suisse de Zoologie, 116: 437–439, Geneva.

On-line

Individual evidence

  1. ↑ Zhen-zu Xu & Jia-qi Huang: On new genus, species and record of Laingiomedusae and Anthomedusae in Fujian coast (Cnidaria, Hydroidomedusae). Journal of Xiamen University Natural Science, 45 (Suppl 2): ​​233-249, Xiamen 2006 ISSN  0438-0479

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