Bulletin ofZoological Nomenclature 63(3) September 2005 205 OPINION 2156 (Case 3262) Nautilus spengleri Gmelin, 1791 (currently Calcarina spengleri) and Calcarina hispida Brady, 1876 (Foraminiferida): usage of the specific names conserved by the designation of a replacement neotype for Nautilus spengleri Abstract. The Commission has ruled that the prevailing usage of both Nautilus spengleri Gmelin, 1791 (the type species of the prominent reef foraminiferan genus Calcarina d'Orbigny, 1826 (family calcarinidae)) and Calcarina hispida Brady, 1876 is conserved by the designation ofa replacement neotype for A', spengleri. In 1981, H.J. HansendesignatedaneotypeforA', spengleri, butthisisaspecimen ofC. hispida Brady, 1876. Keywords. Nomenclature; taxonomy; Foraminiferida; calcarinidae; Calcarina spengleri; Calcarina hispida; foraminifera. Ruling (1) Under the plenary power it is hereby ruled that all type fixations for the nominal species spengleri Gmelin, 1791, as published in the binomen Nautilus NHMW spengleri, are set aside and specimen Inv. Mi-541 is designated as the neotype ofNautilus spengleri. (2) The entry on the Official List of Specific Names in Zoology for Nautilus spengleriGmelin, 1791 is hereby emended to record that it is to be interpreted NHMW by the neotype Inv. Mi-541 in the Naturhistorisches Museum, Vienna. History of Case 3262 An application to conserve the prevailing usage ofboth NautilusspengleriGmelin, 1791 (the type species of the prominent reef foraminiferan genus Calcarina d'Orbigny, 1826 (family calcarinidae)), and Calcarina hispida Brady, 1876 by the designation of a replacement neotype for N. spengleri was received from Willem Renema {Nationaal Natuurhistorisch Museum, Leiden, The Netherlands) and Johann Hohenegger (Institutfiir Palaeontologie. Universitdt Wien, Wien. Austria) on 19 December 2002. After correspondence the case was published in BZN 62; 64—67 (June 2005). The title, abstract and keywords of the case were published on the Commission's website. No comments on this case were received. Decision of the Commission On 1 January 2006 the members of the Commission were invited to vote on the proposals published in BZN 62: 66. At the close ofthe voting period on 1 April 2006 the votes were as follows: Affirmative votes: - 19: Alonso-Zarazaga, Bock, Bouchet, Brothers, Calder, Fortey, Halliday, Kerzhner, Lamas, Macpherson, Mahnert, Mawatari, Minelli, Nielsen, Papp, Patterson, Rosenberg, Stys and van Tol. 206 Bulletin ofZoological Nomenclature 63(3) September 2006 Negative votes: - none. No votes were received from Ng and Song. Original reference Thefollowingistheoriginal referenceto the nameon an Official Listemended bythe ruling given in the present Opinion: spengleri. Nautilus, Gmelin, 1791, Srstenia Naturae Linnaei, Ed. 13, vol. 1(6), p. 3371.