File:Osedax jabba (10.11646-zootaxa.4377.4.1) Figure 12.png

English: FIGURE 12. Osedax jabba n. sp., previously Osedax ‘spiral’; sp.1 SBJ-2006. A. Lower trunk and roots and attached bone fragments of live paratype (SIO-BIC A7837) female. Two obvious roots forms; those emerging from ovisac are thick and covered in grey sediment and not directly in contact with bone. These branch into thinner roots that are covered in yellowish sediment. These thinner roots branch as well and cover the pieces of bone. B. Lower trunk and roots and attached bone fragments of preserved paratype (SIO-BIC A7838) collected June 2006 at 2898 meters. Large main roots can be seen emerging from posterior end of ovisac. C–F. Various view of finer roots of paratype (SIO-BIC A7838), showing how they branch and also are in contact with fragments of bone of various sizes. Root surfaces not in contact with the bone are covered in sediment. G. Transverse section (7 μm) of paratype (SIO-BIC A7835), near base of trunk where oviduct has emerged to the outer dorsal surface. As with other Osedax, there is an outer epidermis, circular and longitudinal muscles and glands, as well as two major blood vessels. However, the majority of the trunk interior has no obvious tissue, except for some minor blood vessels and a few oocytes. This interior space is interpreted here as the coelom. H. Another transverse section (7 μm) of paratype (SIO-BIC A7835) towards the distal (anterior) end of the trunk. The same basic structure as seen in G is also apparent here.