Project 4076: A. Ziegler, A. Miller, N. Nagelmann. 2021. Novel insights into early life stages of finned octopods (Cephalopoda: Cirrata). Swiss Journal of Palaeontology. 140:24.
Specimen: Grimpoteuthis SPECIMEN P (USNM:1460906)
View: not applicable

Abstract

The finned or dumbo octopods (Octopoda: Cirrata) constitute a cephalopod (Mollusca: Cephalopoda) taxon almost exclusively comprising organisms that inhabit the deep-sea. This renders studying the general biology of adult cirrate specimens a difficult task, but even more so when it comes to gathering knowledge on their early life stages. During his comprehensive research exploits on cephalopod development, the late Sigurd von Boletzky (1942–2020) also sought to shed light on specific adaptations that eggs and embryos of these enigmatic deep-sea octopods might show. Based on his seminal work, the present article sets out to provide additional data on a broad range of early cirrate life stages, including egg capsules without any obvious embryonic stage as well as those containing embryos. These previously unreported specimens obtained from museum collections were analyzed using conventional morphological as well as modern three-dimensional imaging techniques. The present overview includes specimens from four of the five oceans, i.e., the Atlantic, Pacific, Indian, and Southern Ocean. Based on information on cirrate ovum, chorion, and egg capsule size as well as shape gathered from the literature, an attempt is made here for the first time to identify von Boletzky's as well as the specimens introduced here down to at least genus level. The combined data provide novel insights into early life stages of finned octopods, aiming to continue von Boletzky's legacy with regard to developmental research on a still largely enigmatic taxon of extant deep-sea cephalopods.


Read the article »

Article DOI: 10.1186/s13358-021-00240-0

Project DOI: 10.7934/P4076, http://dx.doi.org/10.7934/P4076
This project contains
  • 89 Media
  • 11 Taxa
  • 11 Specimens
Total size of project's media files: 556.83M

Download Project SDD File
Currently Viewing:
MorphoBank Project 4076
  • Creation Date:
    05 September 2021
  • Publication Date:
    20 December 2021
  • Project views: 2050

    Authors' Institutions

    • Rheinische Friedrich-Wilhelms-Universität Bonn (University of Bonn)

    • Universitätsklinikum Münster



    Members

    member name taxa specimens media
    Alexander Ziegler
    Project Administrator
    111189


    Project has no matrices defined.



    Project views

    type number of views Individual items viewed (where applicable)
    Total project views2050
    Project overview67
    Media views1554Media search (145 views); M834573 (18 views); M834574 (19 views); M834575 (19 views); M834576 (20 views); M834577 (16 views); M834578 (18 views); M834579 (18 views); M834580 (18 views); M834581 (17 views); M834582 (17 views); M834583 (18 views); M834584 (17 views); M834585 (18 views); M834586 (18 views); M834587 (18 views); M834588 (17 views); M834589 (18 views); M834590 (17 views); M834591 (17 views); M834592 (19 views); M834593 (17 views); M834594 (18 views); M834595 (20 views); M834596 (18 views); M834597 (18 views); M834598 (17 views); M834599 (18 views); M834600 (19 views); M834601 (20 views); M834602 (17 views); M834603 (18 views); M834604 (16 views); M834605 (15 views); M834606 (20 views); M834607 (17 views); M834608 (16 views); M834609 (17 views); M834610 (18 views); M834611 (17 views); M834612 (18 views); M834613 (17 views); M834614 (17 views); M834615 (15 views); M834616 (16 views); M834617 (15 views); M834618 (16 views); M834619 (15 views); M834620 (15 views); M834621 (15 views); M834622 (13 views); M834623 (14 views); M834624 (14 views); M834625 (14 views); M834626 (14 views); M834627 (14 views); M834628 (14 views); M834629 (14 views); M834630 (14 views); M834631 (14 views); M834632 (14 views); M834633 (14 views); M834634 (13 views); M834635 (14 views); M834636 (15 views); M834637 (14 views); M834638 (14 views); M834639 (14 views); M834640 (14 views); M834641 (14 views); M834642 (14 views); M834643 (13 views); M834644 (14 views); M834645 (14 views); M834646 (14 views); M834647 (14 views); M834648 (14 views); M834649 (14 views); M834650 (14 views); M834651 (14 views); M834652 (14 views); M834653 (14 views); M834654 (14 views); M834655 (14 views); M834656 (13 views); M834657 (14 views); M834658 (14 views); M834659 (14 views); M834660 (14 views); M834661 (14 views);
    Views for media list47
    Specimen list243
    Taxon list108
    Bibliography31




    Project downloads

    type number of downloads Individual items downloaded (where applicable)
    Total downloads from project15
    Project downloads15