On the Austral-Antarctic stenothoids Proboloides, Metopoides, Torometopa and Scaphodactylus (Crustacea Amphipoda) Part 2: the genus Proboloides, with description of two new genera and the transfer of two nominal species to Metopoides Author Krapp-Schickel, Traudl text ZooKeys 2011 86 11 45 http://dx.doi.org/10.3897/zookeys.86.785 journal article http://dx.doi.org/10.3897/zookeys.86.785 1313-2970-86-11 Malvinometopa gen. n. Type species. Proboloides porcellanus KH Barnard, 1932 Diagnostic characters. Md palp with 3 arts, Mxp IP separated; Mx1, 2 unknown; A1, 2 peduncle strong, flagellum reduced to 4-6 arts. Cx4 not much wider than Cx2+3. P5 basis rectolinear, with small posterodistal lobe. P6, 7 basis narrowing distad, both with posterodistal small lobe reaching along half of ischium. Etymology. The type species was collected from the pharynx of a large ascidian in the Falkland Islands, in Spanish Islas Malvinas. Remarks. This genus has a posterodistal lobe on P5 basis like the members of Torometopa ; itis different from all other known stenothoid genera by the rectangularly widened, distally narrowing basis of P6, 7. In Metopella and Mesoproboloides P5 is rectolinear without a posterodistal lobe, P6, 7 are differently widened; in Hardametopa P5-7 all have a slender basis. The genera Metopelloides , Stenothoides , Vonimetopa and Zaikometopa differ in having a 1-articulate Md palp, while the palp is absent in Parametopella .