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.
Specimen: Erylus geodiformis (ZMA/POR 5269)

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
This project contains
  • 27 Media
  • 3 Taxa
  • 17 Specimens
Total size of project's media files: 25 MB

Download Project SDD File
Currently Viewing:
MorphoBank Project 112
  • Creation Date:
    10 April 2007
  • Publication Date:
    10 April 2007
  • Project views: 30481

    Authors' Institutions

    • Copenhagen University

    • Universiteit van Amsterdam

    • University of Bergen

    • Natural History Museum of Denmark



    Members

    member name taxa specimens media media
    notes
    Paco Cardenas
    Project Administrator
    Last logged in 12/22/11
    3172727
    Hans Tore Rapp
    Full membership
    Last logged in Never
    0000
    Christoffer Schander
    Full membership
    Last logged in Never
    0000
    Ole Secher Tendal
    Full membership
    Last logged in Never
    0000
    Joana Xavier
    Full membership
    Last logged in 04/13/07
    0000


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views30481
    Media views16165M9723 (449 views); Media search (3217 views); M9624 (467 views); M9622 (678 views); M9722 (430 views); M9635 (431 views); M10544 (463 views); M9629 (486 views); M9718 (507 views); M9710 (470 views); M9628 (477 views); M9626 (475 views); M9717 (440 views); M9633 (673 views); M9705 (456 views); M9707 (447 views); M9621 (457 views); M9631 (474 views); M9630 (477 views); M9625 (496 views); M9627 (435 views); M9709 (497 views); M9721 (477 views); M9706 (512 views); M9634 (421 views); M9704 (468 views); M9632 (455 views); M9708 (430 views);
    Project overview2831
    Specimen list8728
    Taxon list2757




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project218
    Project downloads218