02092nas a2200181   4500008004100000245019700041210006900238300001100307490000700318520142700325653000801752653001601760653001901776653002101795100001901816700002001835856005501855       2011                        eng d00a{New species and occurrences of Bradleya Benson, 1972, Harleya Jellinek & Swanson, 2003 and Poseidonamicus Benson, 1972 (Ostracoda: Cytheroidea) from the Atlantic Sector of the Southern Ocean}0 aNew species and occurrences of Bradleya Benson 1972 Harleya Jell  a1–270 v303 aThe Southern Ocean shelf ostracod fauna is quite well known, while the bathyal and abyssal ones remain poorly understood. Herein, Recent Thaerocytheridae ostracods collected from deep regions in the Atlantic Sector of the Southern Ocean are described and figured. The discovery of Bradleya mesembrina Mazzini, 2005 extends its geographical and bathymetric distribution to the Antarctic zone of the Southern Ocean and to shallower (231 m) and to deeper regions (4420 m). Harleya ansoni (Whatley, Moguilevsky, Ramos & Coxill, 1998) is reported for the first time from the Weddell Sea. We also describe three new species: Poseidonamicus hunti Brandão & Päplow sp. nov., Poseidonamicus tainae Brandão sp. nov. and Poseidonamicus yasuharai Brandão & Päplow sp. nov. For the first time we provide SEM photos of the lectotype of Poseidonamicus viminea (Brady, 1880) nomen dubium. We observe that P. yasuharai displays features intermediate to Harleya and Poseidonamicus, indicating that these two genera may require new diagnoses. The bathymetric distribution of Poseidonamicus is extended to the abyssal zone and to shallower environments, and its geographical distribution is extended southwards. Finally, the inter-specific variability in the number and type of setae and claws found on several segments of Poseidonamicus limbs are intermediate between the highly variable Bairdioidea and the homogeneous Macrocyprididae.10ageo10anew species10aSouthern Ocean10aThaerocytheridae1 aBrandão, S, N1 aPäplow, Olinga  uhttps://challengerostracoda.myspecies.info/node/1300446nas a2200097   4500008004600000245012800046210006900174100002800243700002200271856005500293       Submitted                   eng d     00a{Challenging the deep-sea Cosmopolitanism - Revision of “Cythere dasyderma Brady, 1880” (Ostracoda, Trachyleberididae)}0 aChallenging the deepsea Cosmopolitanism Revision of Cythere dasy1 aBrandão, Simone, Nunes1 aYasuhara, Moriaki  uhttps://challengerostracoda.myspecies.info/node/1502402nas a2200217   4500008004100000022001400041245013200055210006900187300001400256490000700270520167800277653001001955653002901965653002301994653002002017653003002037653001302067100002102080700001702101856006602118       2013                        eng d  a0262-821X00a{Challenging deep-sea cosmopolitanism: taxonomic re-evaluation and biogeography of 'Cythere dasyderma Brady, 1880' (Ostracoda)}0 aChallenging deepsea cosmopolitanism taxonomic reevaluation and b  a109–1220 v323 aCythere dasyderma Brady, 1880 was described from samples collected from all the world’s oceans during the HMS Challenger expedition in the 1870s. Subsequently, Cythere dasyderma (or Echinocythereis dasyderma, or Henryhowella dasyderma) has been recorded from the Late Eocene to Recent, from Atlantic, Arctic, Indian, Pacific and Southern oceans, and from intertidal to deep abyssal environments. However, even cursory inspection of illustrations from over 50 publications shows that several species have been included in ‘Cythere dasyderma’. Here, all syntypes of Cythere dasyderma Brady, 1880 archived in the Natural History Museum, London have been re-studied. This species is re-described, re-diagnosed and illustrated with scanning electron microscope images. Cythere dasyderma is assigned to Ayressoleberis gen. nov., which is described here. The geographical distribution of Ayressoleberis dasyderma (Brady, 1880) comb. nov. is no longer cosmopolitan, and includes only the type locality in the abyssal southeastern Pacific. Most of the specimens previously identified as Cythere dasyderma, or its synonyms, belong to other trachyleberidid genera (e.g. Henryhowella, Legitimocythere, Pennyella) and not to Ayressoleberis dasyderma comb. nov. A new species of Ayressoleberis, very similar to Ayressoleberis dasyderma comb. nov., is described and illustrated from specimens previously included amongst the syntypes of ‘Cythere acanthoderma Brady, 1880’. These latter specimens were collected from the continental slope of the southwestern Indian Ocean. This new species is left in open nomenclature herein because only two left valves are currently available.10a2013a10abathymetric distribution10aBrandao & Yasuhara10acosmopolitanism10ageographical distribution10aTaxonomy1 aBrandão, S., N.1 aYasuhara, M.  uhttp://jm.lyellcollection.org/cgi/doi/10.1144/jmpaleo2012-009