Brinckmannia hexactinellidophila, n. gen., n. sp.: a hydroid living in tissues of glass sponges of the reefs, fjords, and seamounts of Pacific Canada and Alaska

$50.00 plus tax (Refund Policy)

Buy Article:

Abstract:

This paper reports on an intimate association of a cnidarian with glass sponges. Hexactinellid sponges of the genus Heterochone were found to regularly contain numerous tiny hydroids in their tissue. The hydroid belongs to a new genus and species and is here named Brinckmannia hexactinellidophila. Brinckmannia hexactinellidophila is a reduced form, lacking tentacles and gonophores, which certainly is an adaptation to its endobiotic mode of life. The possession of desmonemes allows it to be classified as a member of the suborder Filifera of the order Anthoathecata. The shape of the hydranth reveals some clear affinities with the Proboscidactylidae, a relationship which is also strongly suggested by a comparison of 16S gene sequences. Because a closer relationship to some other families cannot be excluded at this stage, the new genus is nevertheless not assigned to any known family and classified as Filifera incertae sedis.

Notre travail traite d’une association intime entre un cnidaire et des éponges de verre. Les éponges hexactinelles du genre Heterochone contiennent régulièrement de nombreux hydroïdes minuscules dans leurs tissus. L’hydroïde appartient à un nouveau genre et une nouvelle espèce que nous nommons Brinckmannia hexactinellidophila. Brinckmannia hexactinellidophila est une forme réduite sans tentacules ni gonophores, ce qui est certainement une adaptation au mode de vie endobiotique. La présence de desmonèmes permet de le classifier comme membre de la sous-ordre Filifera de l'ordre Anthoathecata. La forme de l’hydranthe montre des affinités claires avec les Proboscidactylidae, une relation qui est aussi fortement suggérée par la comparaison des séquences du gène 16S. Parce qu’on ne peut à présent exclure des relations plus proches avec d’autres familles, le nouveau genre n’est inclus dans aucune famille connue et est donc classifié comme Filifera incertae sedis.

Document Type: Research Article

Publication date: April 1, 2006

More about this publication?
  • Published since 1929, this monthly journal reports on primary research contributed by respected international scientists in the broad field of zoology, including behaviour, biochemistry and physiology, developmental biology, ecology, genetics, morphology and ultrastructure, parasitology and pathology, and systematics and evolution. It also invites experts to submit review articles on topics of current interest.
  • Information for Authors
  • Submit a Paper
  • Subscribe to this Title
  • Terms & Conditions
  • Sample Issue
  • Reprints & Permissions
  • ingentaconnect is not responsible for the content or availability of external websites
Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more