82 PLANORBID.E 



1821. Planorbis vortex, Linn. : C. Pfeiffer, Natiirg. Deutsch. 



Moll, i, p. 79, pi. iv, f. 7. 

 1823. Helix vortex : [Brown], Ency. Brit., ed. 6, vi, p. 458. 

 1826. Planorbis vortex, Mull. : Risso, Hist. Nat. Europ. merid., 



iv, p, 98. 



1826. Planorbis nitidus [Mlill. pars] : Risso, I. c. [Teste 



Bourguignat.] 



1827. Planorbis vortex, Lam. : Brown, Ilhist. Conch. Brit., 



ed. 1, pi. xli, f. 44 & 45. 



1830. Planorbis vortex, Linn. : Jeffreys, Trans. Linn. Soc, 



xvi, p. 382. 



1831. Planorbis coinpressus, nobis: Michaud, Complem. Hist. 



Moll. France Drap., p. 81, pi. xvi, f. 6-8. 

 1831. Planorbis vortex, Drap. : Turton, Manual, p. 109, f. 91. 



[No7i Draparuaud.] 

 1833. Anisus vortex, Studer : Fitzinger, Beitr. Landesk. 



Oesterr., iii, p. 111. [Studer wrote "Plan- 

 orbis vmiex ? Drap."] 

 1837. Planorbis numulus, mihi : Held, Isis, xxx, bft. 4, 



col. 304. 

 1840, \ Planorbis vortex, Linn. : Gray, in Turton's Manual, new 

 Apr. j ed., p. 267, pi. viii, f. 91. 



Post 1 Planorbis vortex, Miiller : Brown, Illust. Conch. Brit., 

 Sept. V ed. 2, p. 32, pi. xiv, f. 44 & 45 [in text 



1840.) 42&43]. 



1845. Planorbis vortex, Miiller : Brown, Illust. L. & F.-W. 



Condi. Brit., p. 22, pi. iii, f. 32 & 33. 

 1847. Helix Papia, Cli. : Nardo, Sinon. Species Chiereghini, 



col. 85. 

 1850. Planorbis (Tropidiscus) vortex : Stein, Lebend. Schneck. 



& Musch. Berlins, p. 77. 

 1852. Planorbis vortex, Linnaeus : Forbes & Hanley, Brit 



Moll, iv, p. 157, pi. cxxvii, f. 6-8. 



1855. Planorbis (Anisus) vortex, Linn. : H. & A. Adams 



Genera Moll, ii, p. 263. 



1856. Planorbis (Gyrorbis) vortex, Liun. : Moquin-Tandon, 



HisL Moll. France, ii, p. 433, pi. xxx, f . 34-37 



1857. Planorbis (Gyrorbis) vortex, Linn. : Gray, in Turton's 



Manual, new ed., p. 242, pi. viii, f. 91. 



1862. Planorbis vortex, Linne : Jeffreys, Brit. Conch., i, p. I 



V, pi. V, f. 7. 



1863. Planorbis vortex, Linnaeus : Reeve, L. & F.-W. Moll. 



Brit. Is., p. 144, figs. 

 1893. Planorbis vorticosus, Linne : Locard, Coq. Eaux douces 

 France, p. 57, f. 42-44. (Reissued in Ann. 

 Soc. Agric. Lyon, Ser. VII, torn, i, 1894, 

 p. 57, f. 42-44.) [Since Locard quotes 

 Linne's name of vortex correctly in his 

 synonymy it is hard to understand why he 

 gratuitously altered it.] 



