56 The Molluscan Family Planorhidae 



1840. Spiralina Hartmaxn, Erd-und Siissw.-Ga.sterop., 'Syst. Uebersicht.' Xude name. 

 1843. Planorbina Haldeman, Mon. Freshwater Univalve Moll., Physidae, p. 14. Type 



designated by Pilsbrv 1934, Planorbis spirorbis Linn. Not Plmiorbina Dall, 



1905. 

 1847. Anisus Studer, Gray, Proc. Zool. Soc, p. 180. Tj-pe Helix spirorbis Linn. 

 1847. Spirorbis Herrmannsen, Ind. Gen. Mai., II, p. 492. Type Planorbis spirorbis 



(Linn.). 

 1850. Tropidiscus Stein (part). Lebend. Schneck. und Musch. Berlins, p. 76. 

 1855. Gijrorbis Moquix-Tandon, Moll. Ter. Fluv. France, II, pp. 423, 428. Type desig- 

 nated bv Lindholm, 1926, Planorbis rotundatus Foiv.=^ Planorbis leucostoma 



Millet. "Not Gyrorbis Fitz., 1833. As genus. 

 1870. Anisus Fitz. Dall, An. Lye. Nat. Hist., N.Y., IX, p. 352. Type Anisus vortex 



(Linn.). As section of Planorbis. 

 1883. Gyrorbis Fischer, Man. de Conch., p. 507. Type Planorbis rotundatus Poir. As 



section of Planorbis. 



1885. Gyrorbis Westerlund, Fauna Palaearc. Reg., Y, p. 64. No type cited. As sub- 



genus of Pla7iorbis. 



1886. Gyrorbis Clessin, Sj'st. Conch. Cab., XVII, p. 34. Type Planorbis rotundatus 



Poir. As subgenus. 



1897. Diplodiscus Westerlund, Act. Soc. Fauna Flora Fennica, XIII, p. 115. First 

 species Planorbis vortex (Linn.). Not Diplodiscus Dies., 1836, Trematodes. 



1899. Spiralina Hartmann, von M.^rtens, Biol. Cent. Amer., Moll., p. 395. Type desig- 

 nated Planorbis vortex (Linn.), by Lindholm in 1922 and Kennard and Wood- 

 ward in 1924. 



1902. Diplodiscus Westerlund, Rad. Jugoslav. Akad., 151, p. 120. First species. Helix 

 vortex Linn. As subgenus of Planorbis. 



1905. Paraspira Dall, Alaska Moll., pp. 82, 86. T^-pe by original designation Planorbis 

 rotundatus Poir. '= Planorbis leucostoma Millet. As section of Planorbis. 



1909. Tr;;.s'^;Vf Honigmann, Zeitsch. f. Naturw., 81, p. 296. Type designated by Lind- 

 holm, 1926, Playiorbis rotundatus Poir. As synonym of subgenus Anisus. 



1917. Gyrorbis L. Soos, Ann. Musei Nat. Hungarici, XV, jip. 49, 143. Gyrorbis spirorbis 

 first species (Anatomy). As genus. 



1921. Diplodiscus Westerlund, Germain, Rec. Ind. Mus., XXI, \). 7. Type Planorbis 

 vortex (Linn.). Non Dies. 1836. As subgenus. 



1921. Paraspira Germain, op. cit., p. 7. Type Planorbis rotundatus Poir. As subgenus. 



1922. Spiralina (Hartmann) von Martens, Lindholm, Ann. Musee Zool. L'Acad. Sci., 



Russia, Tome XXIII, p. 320. Type designated by Lindholm Planorbis vortex 

 (Linn.). As subgenus. 



1923. Gyrostoma Haas, Archiv. f. Molluskund., LV, pp. 43, 45. Type designated 



Gyrostoma rotundatum Poir. = Planorbis leucostoma Millet. Not Gyrostoma 



Kirby and Spence 1828, Knietniewski 1897, or Hesse 1909. 

 1923. Spiralina von Martens 1899, Wenz, Fossil. Cat., pars. 22, p. 1529. Genotype 



Spiralina vortex (Linn.). As genus. 

 1923. Paraspira Wenz, op. cit., p. 1530. Genotype Paraspira rotundata Poiret. As 



genus and subgenus. 

 1926. Spiralina (Hartmann MS) von Martens, Kennard and Woodward, Syn. Brit. 



non-marine Moll., p. 68. Type Helix vortex Linn. As subgenus. 

 1926. Spiralina (Hartmann MS) von Martens, 1899, Lindholm, Archiv. f. Mollusk. 



58 year. Heft 6, p. 252. Ideogenotype Helix vortex Linn. As genus. 

 1926. Anisus (Studer, 1820) Lindholm, op. cit., p. 253. Ideogenotype Planorbis 



spirorbis (Linn.). As genus. 

 1926. Anisiis (S. Str.) Lindholm, op. cit., p. 253. Monogenotype Spirorbis vul- 

 garise^ Planorbis vortex var. of Drap.). As subgenus. 

 1929. Anisxis (Studer, 1820) H\as, Trab. Mus. Cien. Nat. Barcelona, XIII, p. 281. Type 



evidently Planorbis spirorbis (Linn.). As genus. 

 1929. Spiralina (von Martens, 1899) Haas, op. cit., p. 381. Type evidently Helix 



vortex Linn. As genus. 



