80 HELICIDJE. 



H. ROTUNDATA, Miiller. 



Flattish, witli crowded costellar strire, for the most part radi- 

 atingly spotted with chestnut ; umbilical opening peculiarly 

 large ; mouth lunate. 



Plate CXIX. fig. G, 7, and (Animal) Plate G.G.G. fig. 2. 



Helix rotundutu, Muller, Hist. Verm. pt. 2, p. 29.— Turt. Conch. Diction, 

 p. 53.- — Fleming, Brit, Anim. p. 260. — Jeffreys, Trans. 

 Linn. Soc. vol. xvi. p. 342, 511. — Thompson, Ann. Nat. 

 Hist. Tol. vi. p. 30. — Brown, Illust. Conch. G. B. p. .51, pi. 

 17, f. 14, 18, 19, 20, 24.— Drap. Moll. Tcr. et Fluv. France, 

 p. 114, pi. 8, f. 4 to 7.— F£RL\s. Prodr. 196; Hist. Moll. Ter. 

 et Fluv. pi. 79, f. 2, 3, 4 (Ilelicella).— Lam. (ed. Desh.) vol. 

 viii. p. 74. — C. Pfeif. Deutsch. Land nnd S'lissw. Moll. pt. 1, 

 p. 44, pi. 2, f. 33, 34.— Charpent. N. Denks. Schweiz. Ges. 

 Nat. vol. i. (1837) p. 12 (Deloniphalus). — Krynicki, Bull. 

 Soc. Nat. Moscou, vol. ix. p. 210. — Rossmassl. Iconog. 

 Land und Siissw. Moll. pt. 7, p. 13, f. 454. — Morelet, 

 Moll. Ter. et Fluv. Portugal, p. 55. — Chemn. (ed. K'ust.) 

 Helix, no. 153, pi. 24, f. 14, 15, 16. — L. Pfeif. Monog. 

 Helic. vol. i. p. 105. 

 „ radiuia, Da Costa, Brit. Conch, p. 57, pi. 4, f. 15, 16. — Mont. Test. 

 Brit. p. 432, pl.24,f. 3.— Maton and Rack. Trans. Linn. Soc. 

 vol. viii. p. 199. — Dorset Catalog, p. 54, pi. 20, f. 15, 16.— 

 Turt. Conch. Diction, p. 53.— Manual L. and F. W. Sliclls, 

 p. 59, f. 44.— Index Testaceolog. pi. 32. f. 11. 

 „ Turtoni, Fleming, Brit. Animals, p. 260. 

 Discus rotundatus, Fitzing. Syst. Verz. Erzli. Weichth. Oester. p. 99. 

 Patula rotundata. Held, Isis, 1837, p. 916. 



Euryomphala rolundata. Beck, Index Moll. Mus. Christ. Frid. p. 9. 

 Zonites rotimdatus. Gray, Manual L. and F. W. Shells, p. 165, pi. 5, f. 44. — 

 Macgilliv. Moll. Aberd. p. 88. 



Shell small, depressed, nearly equally convex on both 

 sides, not polished, thin, semitransparent, yellowish horn- 

 colour or reddish grey, so alternating with chestnut as to 

 present the appearance of numerous narrow ray-like streaks 

 of the latter hue diverging from the central axis ; longitudi- 

 nally sculptured throughout with crowded but strong and 

 regular costellar striae. Whorls narrow, from five to six 



