6tt PLANORBID^ 



1856. Limncca (Aitiphipeplca) glutinosa, Miill. : Moquin-Tan- 



DON, Hist. Moll. France, ii, p. 461, pi. xxxiii, 

 f. 16-20. 



1857. Amphipeplea glutinosa, Miiller : Gray, in Turton's 



Manual, new ed., p. 212, pi. ix, f. 103. 



1862. Linma^a glutinosa, Miiller : Jeffreys, Brit. Conch., i, 



p. 102; V, pi. vii, f. 1. 



1863. Limncea glutinosa, Miiller : Reeve, L. & F.-W. Brit. Is., 



p. 167, figs. 



[Germain {Moll. France, ii, p. 245) cites as synonyms : — 

 Amphipeplea Mahillci, Bourg. ; and A. Dupuyi, 

 Bourg.] 



First recorded as British in 1803, by G. Montagu, as 

 Helix glutinosa. (See ref. above.) 



British Distribution in Time : Pleistocene to Recent. 



Fam. : PLANORBID^. 



Genus : 1. PLANORBIS, Geoffroy.i 



Etym. : — Lat. planus + orhis, a flat circle. 

 Type by tautonomy : — Helix planorhis, Linne. 

 (Helix, vctt. auctt.) 



1767. Planorhis : Geoffroy, Traite Coq. Paris, p. 12. 



1772. Orbis : Dezallier u'Argenville, Conchyliologie, pt. 1, 

 p. 281. [A non-binominal work, with no 

 species cited. In pt. 2, on p. 56, the name 

 appears as Planorhis, in which form it also 

 occurred in the French edition of 1757.] 



1777. Planorhis [pars] : Muller, Verm. Hist., ii, p. 152. 



1806. Planorharius : Froriep, in Dumeril's Analyt. Zool., 

 p. 165. 



1820. Anisus [pars] : Studer, Natunv. Anz. Allg. Schweitz. 

 Gcsell., iii, p. 91. 



1847. Corelus, Adns. : Gray, Proc. Zool. Soc. Lond., 1847, 

 p. 180. [Adanson was a pre-Linnean writer.] 



Sub-gen. : Flanorbis, s.s. 



1767. Planorhis : Geoffroy, Traite Coq. Paris, p. 12. 

 1833. Anisus : Fitzinger, Beitr. Landesk. Oesterr., iii, 



p. 111. [Non Dejean, 1821 (Coleopt).] 

 1850. Tropidiscus [pars] : Stein, Lehend, Schneck. & 



Muscli. Berlins, p. 76. 



' For Note concerning the type of this genus and the correct subgenera 

 for the British species, Hte. Kennakd & Woodwabd, Proc. Malac. Soc. 

 Land., xvi, 1924, p. 9. 



