GONIODISCUS 155 



1837. Helix {Delomphalus) rotundata, Mull. : Charpentier, Neue 



Denkschr. Allg. Schweiz. Gesell., i [no. 2], p. 12. 

 1837. Helix {Eyryomphala) rudis, Gray : Beck, Index Moll., 



p. 9. [Non Gray.] 

 1837. Helix [Eyryomphala) rotundata, 0. Miill. : Beck, I. c. 

 1837. Palula rotundata, Miill. : Held, Isis, xxx, hft. 12, col. 916. 

 1840,") Zonites rotundatus, Miiller : Gray, Turton's Manual, 

 Apr. j new ed., p. 105, pi. v, f. 44. 



Po.st i Helix {Verticillatce) rotundata, Miiller: Brown, Illust. 

 Sept. - Conch. Brit., ed. 2, p. 51, pi. xvii, f. 14, 



1840.) 18-20 & 24. 



1845. "f Helix {Verticillatce) rotundata, Miiller : Brown, Ulust. L. 



d- F.-W. Conch. Brit., p. 78, pi. viii, f. 20-24. 

 1847. Helix striatula, Cli. : Nardo, Sinon. Chiereghini, col. 85. 

 1847. Helix (Euryomphala) rotundata, Miill. : Beck, Amtl. Ber. 



24. Versamm. Deutsch. Naturf., p. 122. 

 1850. Helix (Patida) rotundata, Miill. : Albers, Heliceen, p. 64. 



1852, j jj^^i^ rotundata, Muller : Forbes & Hanley, Brit. Moll., 

 ^^^- j iv, p. 80, pi. cxix, f. 6 & 7. 



185Z, j 2,onites radiatus, Mout. : Leach, Moll. Brit. Synop., 



1855,) Helix {Euromphala) rotundata, Miill. : Lowe, Proc. Zool. 

 Mar. / Soc. Lond., xxii, 1854 (-55), p. 176. 



1855, \ Helix [Delomphalus) rotundata, Miill. : Moquin-Tandon, 

 Sept.) Hist. Moll. France, ii, p. 107, pi. x, f. 9-12. 



1857. Helix [Delomphalus) rotundata, Miiller : Gray, Turton's 

 Manual, new ed., p. 141, pi. v, f. 44. 



1862. Helix rotundata, Miiller : Jeffreys, Brit. Conch., i, 



p. 218 ; V, pi. xiii, f. 5. 



1863. Helix rotundata, Miiller : Reeve, L. & F.-W. Moll. Brit. 



Is., p. 83, figs. 

 1876. Patida [Patularia) rotundata, Miiller : Clessin, Deutsch. 

 Excur. Moll. Fauna, p. 87, f. 38. 



1893. Pyramidula [Gonyodiscus) rotundata, Miill : Pilsbry, 



Tryon's Manual Conch., Ser. II, vol. ix, p. 47. 



1894. Patula [Discus) rotundata, Miill. : Weiss, Nachrbl. 



Deutsch. Malak. Gesell., xxvi, p. 151. 



1908. Helix [Gonyodiscus) rotundata, Miiller : Germain, Bull. 



Soc. Sci. Nat. Elbeuf, xxvi, p. 79. 



1909. Helix [Goniodiscus) rotundata, Miill. : Jodot, Compte 



Rend. Assoc. Franc;., Sess. xxxvii, p. 427. 



1909,\ Pyramidtda [Discus) rotundata (Miiller) : Taylor, 



Sept.J Monog. Moll. Brit. Is. [ill], p. 180, pi. xix. 



[Germain [Moll. France, ii, p. 83) states that the Helix 



onialisina of Bourguignat is a variety of this species.] 



First recorded as British in 1692, by M. Lister [Hist. 



Conch., iv. Append., pi. mlviii, f. 11). 

 British Distribution in Time : Pleistocene to Recent. 



