124 helicidte. 



SPURIOUS.* 



C. bidens, Linnseus. 



Turbo bidens, Linn. Syst. Nat. ed. 12, p. 1240. Pult. Hutchins, Hist. Dorset, 

 p. 46, from type. — Maton and Rack. Trans. Linn. vol. viii. 

 p. 178, pi. 5, f. 3.— Turt. Conch. Diction, p. 224. 

 Clausilia papillaris, Drap. Moll. Ter. et Fluv. France, p. 71, pi. 4, f. 13. 

 „ bidens, Turt. Manual Land and F. W. Shells, p. 73, f. 56. 



A common species in the South of Europe. Pulteney, whose 

 specimen was figured in the " Linnean Transactions," mentions it 

 as a Dorset species, but this locality has never been trusted to. 



For the foreign synonymy see " Monographia Heliceorum" vol. 

 ii. p. 453 (CI. bidens). 



0. labiata, Montagu. 



Turbo labiatus, Mont. Test. Brit. p. 3G2, pi. 11, f. 6. — Maton and Rack. 

 Trans. Lin. Soc. vol. viii. p. 130. — Rack. Dorset Catalog. 

 p. 51. — Turt, Conch. Diction, p. 225. — Dillw. Recent 

 Shells, vol. ii. p. 875. 

 Odostomia labiata, Fleming, Encycl. Edin. vol. vii. pt. 1, p. 77. 

 Clausilia „ Fleming, Brit. Animals, p. 272. — Jeffreys, Trans. Lin. 

 Soc. vol. xvi. p. 323, 513. — Turt. Manual Land and F. 

 W. Shells, p. 74, f. 57. 



Shell fusiform, not slender, nor cylindrical, but much attenu- 

 ated above, and a little swollen at the penult and antepenult 

 volutions ; more or less strong, not variegated, ash-coloured, with 

 extremely fine and numerous raised longitudinal threads that are 

 narrower than their intervals. Whorls nine, flattish, rather 

 broad ; the apical coils rounded and smooth. Mouth large, 

 broadly and somewhat squarely oval, the cavity itself obliquely 

 subpyriform : the peritreme free, white, strong, and broadly 

 reflected all round. 



* The drawing of C. solida, in Kenyon's paper on British Shells (Mag. Nat. 

 Hist. vol. i. p. 42G, f. 183, ?«), is merely illustrative, and not avowedly taken 

 from a British specimen. Similarly, the rude representation (tig. 183, /) of what 

 i.s termed the C. ventrlcosa of Drapaniaud, is merely given from Mr. Eenyon - 

 belief that it is identical with our bipUcata. 



