Bulletin ofZoological Nomenclature 58(1) March 2001 63 OPINION 1965 Euchilus Sandberger, 1870 and Stalioa Brusina, 1870 (Mollusca, Gastropoda): Bithinia deschiensiana Deshayes, 1862 and Paludina desmarestii Prevost, 1821 designated as the respective type species, with the conservation of Bania Brusina, 1896 Keywords. Nomenclature; taxonomy; Gastropoda; prosobranchs; hydrobiidae; Euchilus; Stalioa; Bania; Euchilus deschiensianus; Stalioa desmarestii; Bania prototypica; Tertiary. Ruling (1) Underthe plenary powerall previousfixations oftype species forthe following nominal genera are hereby set aside: (a) Euchilus Sandberger, 1870 prior to that by Sandberger (1872) of Bithinia deschiensiana Deshayes, 1862; (b) Stalioa Brusina, 1870 prior to that by Cossmann (1893) of Paludina desmarestii Prevost, 1821. (2) The following names are hereby placed on the Official List ofGeneric Names in Zoology: (a) Euchilus Sandberger, 1870 (gender: masculine), type species by subsequent designation by Sandberger (1872) Bithinia deschiensiana Deshayes, 1862 by the ruling in (l)(a) above; (b) Stalioa Brusina, 1870 (gender: feminine), type species by subsequent designation by Cossmann (1893) Paludina desmarestii Prevost, 1821 by the ruling in (l)(b) above; (c) Bania Brusina, 1896 (gender: feminine), type species by monotypy Stalioa prototypica Brusina, 1872. (3) The following names are hereby placed on the Official List of Specific Names in Zoology: (a) deschiensiana Deshayes, 1862, as published in the binomen Bithinia deschiensiana (specific name of the type species of Euchilus Sandberger, 1870); (b) desmarestiiPrevost, 1821, as publishedin the binomen Paludinadesmarestii (specific name of the type species of Stalioa Brusina, 1870); (c) prototypica Brusina, 1872, as published in the binomen Stalioaprototypica (specific name of the type species ofBania Brusina, 1896). (4) The following names are hereby placed on the Official Index ofRejected and Invalid Names in Zoology: (a) Stoliva Fuchs, 1877 (an incorrect subsequent spelling of Stalioa Brusina, 1870); (b) Sandbergeriella Schlickum, 1968 (a junior objective synonym of Stalioa Brusina, 1870); (c) Stalioia Fischer, 1885 (an unnecessary replacement name and junior objective synonym of Stalioa Brusina, 1870). 64 Bulletin ofZoological Nomenclature 58(1) March 2001 History of Case 3008 An application for the designation of Bithinia deschiensiana Deshayes, 1862 and Paludina desmarestii Prevost, 1821 as the respective type species of Euchilus Sandberger, 1870 and Stalioa Brusina, 1870, togetherwith the conservation ofBania Brusina, 1896, was received from Dr D. Kadolsky {Sanderstead, South Croydon, Surrey, U.K.) on 11 December 1995. After correspondence the case was published in BZN 55: 82-86 (June 1998). Notice ofthe case was sent to appropriate journals. A comment from Prof Philippe Bouchet (Museum National d'Histoire Naturelle, Paris, France) was published in BZN 56: 187 (September 1999). Prof Bouchet opposed the designation ofBithinia deschiensiana Deshayes, 1862 as the type species ofEuchilus Sandberger, 1870 and the suppression ofthe name Stoliva Fuchs, 1877, a doubtful senior subjective synonym of Bania Brusina, 1896 (para. 8 of the application). A reply from the author ofthe application was published in BZN 56: 266-267 (December 1999). The application was offered for voting in three parts. Vote 1 related to the conservation ofEuchilus Sandberger, 1870 and placement ofthe name, and the name ofits type species, on Official Lists (proposals (l)(a)(i), (2)(a) and (3)(a) on BZN 55: 84). Vote 2 related to the conservation ofStalioa Brusina, 1870 and placement ofthe name, and the name ofits type species, on Official Lists, together with placement of thejunior objective synonyms Sandbergeriella Schlickum, 1968 and Stalioia Fischer, 1885 ontheOfficial Index(proposals(l)(a)(ii), (2)(b), (3)(b), (4)(b) and(4)(c) on BZN 55: 84-85). Vote 3 related to the conservation ofBania Brusina, 1896 and placement of the name, and the name of its type species, on Official Lists, together with suppression ofthe name Stoliva Fuchs, 1877 (proposals (l)(b), (2)(c), (3)(c) and (4)(a) on BZN 55: 85). Decision of the Commission On 1 September 2000 the members of the Commission were invited to vote on the proposals published in BZN 55: 84-85. At the close of the voting period on 1 December 2000 the votes we—re as follows: Vote 1. Affirmative votes 13: Brothers, Cogger, Kerzhner, Kraus, Lamas, Macpherson, Mahn—ert, Martins de Souza, Mawatari, Nielsen, Ng, Papp, Stys Negative votes 5: Alonso-Zarazaga, Bock, Bouchet, Calder and Rosenberg. — Vote 2. Affirmative votes 14: Alonso-Zarazaga, Brothers, Cogger, Kerzhner, Kraus, Lamas, Macpherson, Mahnert, Martins de Souza, Mawatari, Ng, Papp, Rosenberg, Stys — Negative votes 4: Bock, Bouchet, Calder and Nielsen. — Vote 3. Affirmative votes 11: Brothers, Cogger, Kerzhner, Kraus, Lamas, Macpherson, Mahnert, Martins de Souza, Mawatari, Ng, Papp — Negativevotes 7: Alonso-Zarazaga, Bock, Bouchet, Calder, Nielsen, Rosenberg and Stys. Patterson and Song abstained. No votes were received from Dupuis, Eschmeyer and Ride. Minelli was on leave of absence. . Bulletin ofZoological Nomenclature 58(1) March 2001 65 Caldercommented: 'Maintaining the type species fixations that are valid under the Code ofboth Euchilus Sandberger, 1870 and Stalioa Brusina, 1870 and, ifnecessary, establishing a new name for the genus-group taxon including Bithinia deschiensiana Deshayes, 1862 would not seem overly disturbing to nomenclatural stability in this case'. Kerzhner commented: 'I am against the placement ofthe name Stoliva Fuchs, 1877 on the Official Index, and I also consider the placement of Sandbergiella Schlickum, 1968 and Stalioia Fischer, 1885 on the Index to be superfluous. There are three other incorrect subsequent spellings of Stalioa listed in vol. 4 (1940) of S.A. Neave's Nomenclator Zoologicus'. Ng commented: T see no reason why the name Stoliva should be suppressed. It is clearly an incorrect spelling, as pointed out by Bouchet in his comment, and if treated as such poses no nomenclatural problems'. Rosenberg commented: 'Because ofthe conflicting taxonomic concepts ofEuchilus, I think stability of nomenclature would be best served by making the name an objective synonym of Stalioa' In Vote 3 the proposal to suppress the name Stoliva Fuchs, 1877 failed to meet the two-thirds majority necessary for approval, and the name is placed on the Official Index as an incorrect subsequent spelling ofStalioa Brusina, 1870. The name Bania Brusina, 1896 has been removed from the synonymy ofStalioa by the designation of Paludina desmarestii Prevot, 1821 as the type species of Stalioa in Vote 2; Bania is conserved and placed on the Official List with Stalioaprototypica Brusina, 1872 as the type species. Original references Thefollowingaretheoriginal referencestothenamesplacedonOfficial ListsandanOfficial Index by the ruling given in the present Opinion: BaniaBrusina, 1896, GlasnikaHrvatskogaNaravoslovnogaDrustva, 9: 130. [In Serbo-Croatian and French]. deschiensiana, Bithinia, Deshayes, 1862, in: Descriptiondesanimauxsans vertebresduBassinde Paris, part 2, p. 492. desmarestii, Paludina, Prevost, 1821,JournaldePhysique, de Chimie, d'Histoirenaturelleetdes Arts, 92: 426. Euchilus Sandberger, 1870, Die Land- und Stisswasser-Conchylien der Vorwelt, livraison 2-3, pi. 11, fig. 10. prototypica, Stalioa, Brusina, 1872, Rad Jugoslavenske Akademije Znanosti i Umjetnosti, 19: 144. Sandbergeriella Schlickum, 1968, Archivfur Molluskenkunde, 98(1-2): 53. Stalioa Brusina, 1870, Verhandlungen der Kaiserlich-Koniglichen Zoologisch-Botanischen Gesellschaft in Wien, 20: 937. Stalioia Fischer, 1885, in: Manuel de conchyliologie et de paleontologie conchyliologique ou histoire naturelle des mollusques vivants etfossiles, p. 731. Stoliva Fuchs, 1877, Zeitschrift der Deutschen Geologischen Gesellschaft, 29(4): 682. The following is the reference for the designation ofBithinia deschiensiana Deshayes, 1862 as the type species ofEuchilus Sandberger, 1870: Sandberger, C.L.F. von. 1872. DieLand- undSiisswasser-Conchyliender Vorwelt, livraison6-8, p. 225. The following is the reference for the designation ofPaludina desmarestii Prevost, 1821 as the type species ofStolioa Brusina, 1870: Cossmann, M. 1893. Annates de la Societe Royale Malacologique de Belgique, 28: 15.