Project 112: P. Cárdenas, J. Xavier, O. S. Tendal, C. Schander, H. T. Rapp. 2007. Redescription and resurrection of Pachymatisma normani (Demospongiae: Geodiidae), with remarks on the genus Pachymatisma. Journal of the Marine Biological Association of the United Kingdom. 87 (6):1511-1525.
Abstract
An increasing number of cryptic species are being discovered within sponges with assumed wide geographical distribution. Pachymatisma johnstonia (Bowerbank in Johnston, 1842) (Astrophorida, Geodiidae) is one of the most common and known sponges throughout the North-East Atlantic coasts. Pachymatisma normani Sollas, 1888 is a northern species previously synonymized with P. johnstonia by Topsent. It is here redescribed on the basis of fresh material from the type locality, the Korsfjord in the Bergen area (Norway). Spicules are shown to be reliable characters to distinguish the species investigated. P. normani is characterized by larger spicules, most markedly in the sterrasters. Our observations also suggest that habitat and gross morphology distinguish P. johnstonia from P. normani. Furthermore, using a partial sequence of the cytochrome c oxidase subunit I (COI) and an ITS1-5.8-ITS2 nuclear fragment, we show that consistent genetic differences exist between the two species. A brief overview of the genus and a key to the known species are also given.Read the article »
Project DOI: 10.7934/P112, http://dx.doi.org/10.7934/P112
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MorphoBank Project 112
MorphoBank Project 112
- Creation Date:
10 April 2007 - Publication Date:
10 April 2007 - Project views: 48603
Authors' Institutions
- Copenhagen University
- Universiteit van Amsterdam (University of Amsterdam)
- University of Bergen
- Natural History Museum of Denmark
Members
member name | taxa ![]() |
specimens ![]() |
media ![]() | media notes |
Paco Cardenas Project Administrator | 3 | 17 | 27 | 27 |
Hans Tore Rapp Full membership ![]() | 0 | 0 | 0 | 0 |
Christoffer Schander Full membership ![]() | 0 | 0 | 0 | 0 |
Ole Secher Tendal Full membership ![]() | 0 | 0 | 0 | 0 |
Joana Xavier Full membership ![]() | 0 | 0 | 0 | 0 |
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