Torbenella orbis (Baba, 2005)

Ahyong, Shane T., Taylor, Joanne & Mccallum, Anna W., 2013, New species and new records of deepwater munidid squat lobsters from north-western Australia: Onconida, Bathymunida, Crosnierita, Plesionida and Torbenella, Zootaxa 3734 (1), pp. 23-37 : 35-37

Torbenella orbis (Baba, 2005)

Munida sp.—Macpherson, 1997: 611.

Torbenia orbis Baba, 2005: 204 –207, 308, fig. 94 [type locality: Kei Islands, Indonesia, 260 m]. Torbenella orbis .—Baba 2008: 1021.—Baba et al. 2008: 182.

Material examined. NMV J56019 , 3 ov. females (cl 11.6–11.8 mm, pcl 8.8–8.9 mm), Mermaid L24 east transect, 17°02.838–03.708'S, 119°39.684–41.358'E, 424–456 m, beam trawl, SS05/2007/077 (acq. 022), 18 Jun 2007.

Remarks. The Western Australian specimens of T. orbis agree closely in most respects with the type description (Baba 2005) exhibiting similar carapace and pereopodal spination. In addition to the distal spine, the chelipeds have 2–4 dorsal carpal and 1–3 meral spines of varying size. The pereopod 2 merus is armed with 5–10 graded extensor marginal spines in addition to the distal spine; the extensor meral margins of pereopods 3 and 4 have only the distal spine. Baba (2005) noted the presence of a decalcified area on the surface of the ischium on pereopods 1– 3 of the holotype of T. orbis . Similar translucent, decalcified areas are evident in two of the present specimens, indistinct in the other.

Distribution. Kei Islands, Norfolk Island and now from Western Australia; 260– 456 m.

Acknowledgments

We are grateful to Chris Rowley and Melanie Mackenzie (both Museum Victoria) for collection management support, Gary Poore (Museum Victoria) for initial sorting of specimens, Karen Gowlett-Holmes (CSIRO) for permission to reproduce her colour images of squat lobsters. Funding for the surveys was provided by the Commonwealth Department of the Environment and the CSIRO Wealth from Oceans Flagship. This work was partially supported by a Postdoctoral Fellowship from Australian Biological Resources Study (ABRS) to the first and last authors, and the Marine Biodiversity Hub through the Australian Government’s National Environmental Research Program (NERP). Funding for the second author’s postdoctoral fellowship was provided through the Census of Marine Life project, “Continental Margin Ecosystems” (COMARGE). Travel support was provided for work conducted at the Australian Museum, Sydney, through the Encyclopedia of Life (EOL)/ Smithsonian Institution Rubenstein Fellowship.

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