PLANORBTS 73 



18G2. Planorhis carinatus, Miillor : Jeffreys, Brit. Conch, i, 



p. 98; V, pi. vi, f. 1. 

 1863. Phuiorhis carinatus, Muller : Reeve, L. & F.-W. Moll. 



Brit. Is., p. 142, figs. 

 1877. Planorhis (Tropodiscu.'i) [sic] carinatus, Muller : Clessin, 



Deutsch. Excur. Moll. Fauna, p. 400. 



[Germain {Moll. France, ii, p. 251) gives as synonyms : — 

 Phuiorhis fcrvius, Bourg. ; and P. f/nlUcus, Bourg.] 



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

 Helix carinata. {See ref. above.) 



British Distribution in Time : Cromerian to Recent. 



3. Planorbis (Planorbarius) corneus (Linne). 

 Etym. : — Lat. corneus, horny. 



1758. Helix cornea: Linn^us, Syst. Nat., ed. 10, p. 770, 



no. 587. 

 1767. Helix cornea : Linn^us, o. c, ed. 12, p. 1234, no. 671. 

 1767. Plavorhis cornea [sic], Linn. : Geoffroy, Traite Coq. 



Paris, p. 85. 

 1774. Planorbis purpura : Muller, Verm. Hist., ii, p. 154. 

 1774. Planorbis similis : Muller, o. c, p. 166. 

 1777. Helix nana: Pennant, Brit. Zool, ed. 4, 8vo, p. 133; 



4to, p. 116, pi. Ixxxiii, f. 125. 



1777. Helix cornea, Linn. : Pennant, t.c, 8vo, p. 134; 4to, 



p. 116, pl. Ixxxiii, f. 126. 



1778. Helix cornu arietis : DaCosta, Test. Brit., p. 60, pl. iv, 



f. 13. [Non Linnaeus.] 

 1791. Helix cornea : Gmelin, in Linn. Syst. Nat., ed. 13, i, 



pt. 6, p. 3623, no. 35. 

 1791. Helix similis: Gmelin, o.c, ed. 13, i, pt. 6, p. 3625, 



no. 40. 

 1799. Helix cornea : Pulteney, Cat. Dorset., p. 47. 



/ ' Planorbis corneus (Linn.) : Poiret, Coq. Aisne, p. 87. 



1801,) Planorbis corneus (Linn.): Draparnaud, Tail. Moll. 



July. J France, p. 43. 



1803. Helix cornea, Lin. : Montagu, Test. Brit., p. 448. 



1805. Planorbis corneus, Linn. : Draparnaud, Hist. Moll. 



France, p. 43, pl. i, f. 42-44. 



1806. Planorhariiis corneus : Froriep, in Dumeril's Analyt. 



Zool., p. 165. 



1807. Helix cornea, Linn. : ]\Iaton & Rackett, Trans. Linn. 



Soc, viii, p. 190. 

 1813. Helix cornea : Rackett, in Pulteney, Cat. Dorset., ed. 2, 



p. 52, pl. XX, f. 13. 

 1817. Helix cornea, Linn. : Dillwyn, Cat. Shells, ii, p. 906. 

 1817. Helix similis, Gmcl. : Dillwyn, t. c, p. 907. 



