138 VALLONIID^ 



1909. Helix (Theba) puJchella, Miill. : Jodot, Compfe Rend. 



Assoc. Fran^., Sess. 37, p. 427. 

 1909. Lurama [err. typ.] pulchella, 0. F. Miiller : Honigmann, 



Zeitschr. f. Natunv., Ixxxi, p. 290. 



First recorded as British in 1784, by Boys & Walker 



{Test, minut. rar., p. 6, pi. i, f. 23). 

 British Distribution in Time : Pliocene to Recent. 



2. Vallonia excentrica, Sterki. 



Etym. : — Lat. ex + centrum, out of the centre. 



11778. Helix paludosa : DaCosta, Test. Brit., p. 59. 

 1803. Helix paludosa, DaCosta [pars] : Montagu, Test. Brit., 



p. 440. Cites in synonymy, Boys & Walker, 



Test, minut. rar., f. 23. 

 1817. Helix minuta [pars] : Say, Journ. Acad. Nat. Sci. Philad., 



i, p. 123. 

 1893,) Vallonia excentrica, n. sp. : Sterki, in Tryon's Manual, 

 July./ Ser. II, vol. viii, p. 249, pi. xxxii, f. 6-9. 



1893,) Vallonia excentrica, n. sp. : Sterki, Proc. Acad. Nat. 

 Sept./ Sci. Philad., 1893, p. 2.52, pi. viii, f. B. & M. 



1894. Vallonia puhhella, Miill., var. excentricoides, Sterla : 



Weiss, Nachrbl. Deutsch. Malak. Gesell, 



xxvi, p. 151. 

 1904. Lurama [err. typ.] excentrica, Sterki : Honigmann, 



Zeitschr. f. Naturw., Ixxxi, p. 290. 



First recorded as British probably in 1712, by J. Morton 



{Nat. Hist. Northampton., p. 417). 

 British Distribution in Time : Pliocene to Recent. 



3. tVallonia tenuilimbata (Sandberger). 



Etym. : — Lat. tenuis ~{- liinhatus, narrowly margined. 



1880. Helix {Vallonia) tenuilimbata, Sandb. : Sandberger, 

 Palaeontogr., xxvii (N.F. vii), p. 102, pl. xii, 

 f. 13-13 rf. 



1914. Vallonia tenuiJimhata, Sandberger : Kennard & Wood- 

 ward, List Brit. Non-mar. Moll., p. 7. 



First recorded as British in 1880, by C. L. F. von Sand- 

 berger. {See ref. above.) 

 British Distribution in Time : Cromerian. 



4. Vallonia costata (Miiller). 

 Etym. : — Lat. costatus, ribbed. 



1774. Helix costata : Muller, Ver^n. Hist., ii, p. 31. 

 1786. Turbo helicinus : Lightfoot, Phil. Trans. Roy. Soc, 

 Ixxvi, p. 167, pl. iii [a], f. 1-4. 



