LIMN^US. 179 



Bulivms leucostuma, Poiret, Prodr. p. 37 (teste Michaud). 



Helix octanfr acta, Mont. Test. Brit. p. 396, 588, pi. 11, f. 8. — Matun and 



Rack. Trans. Linn. vol. viii. p. 211. — Rack. Dorset 



Catalog, p. 55, pi. 18, f. 11,— Turt. Conch. Diction, p. 64. 



—Wood, Index Testae, pi. 35, f. 140. 

 „ pcregrina, Dillw. Recent Shells, vol. ii. p. 954. 

 Limneus elonijatus, Drap. Moll. Ter. et Fluv. France, p. 52, pi. 3, f. 3, 4. — 



Jeffr. Trans. Linn. Soc. vol. xvi. p, 376, 520. — Turt. 



Conch. Man, p. 122, f. 106. 

 LymniBa leucostoma, Lam. Anim. s. Vert. (ed. Desh.) vol. viii. p. 414. 

 LimncBus elonyatus, Pfeif. Deutsch. Land und Slissvv. Moll. pt. ] , p. 92, pi. 4, 



f. 26. — RossMAssL. Iconog. Land und SUssw. Moll. pt. 1, 



p. 101, pi. 2, f. 58. 

 Limnca odona, Flem. Brit. Anim. p. 274. 



„ clongatu, Sowerby, Genera Shells, Lim. f. 6. — Reeve, Conch. S^'St. 



pi. 191, f. 6.— Merjiet, Moll. Pyren. p. 68. 

 Llmimus glaUr, Gray, Turt. Man. L. and F. W. Shells, p. 242, pi. 9, f. 106.— 



Stein, Schnecken Berlins, pi. 2, f. 9. 

 Limnea leucostoma, Gras, Moll. Ter. et Fluv. France, p. 65, pi. 5, f. 5. 

 Ltjmnaa elongata, Nils. Moll. Suec, Ter. et Fluv. p. 71. — Brown, Illust. 



Conch. G, B. p. 29, pi. 15, f. 1, 2, 3, 5. — Schub. and 



Wagn. Conch, Cab, vol. xii, p. 181, pi. 235, f. 4132, 4133. 



Shell turreted-subcylindraceous, the slender body being 

 nearly equally broad throughout, and the spire slowly 

 tapering to a fine point ; thin, somewhat glossy, pale horn- 

 coloured, slightly wrinkled lengthways, the ordinary mi- 

 croscopic chasing less distinct than in most of the genus. 

 Whorls more frequently seven, occasionally nine, rather 

 high, of slow increase, simply convex, or moderately 

 rounded in the middle, slightly attenuated, but not at all 

 planulate above, swelling out at once from the very pro- 

 found and but moderately slanting suture. Body not 

 quite occupying half of the dorsal length, its surface 

 rounded but not inflated ; basal declination not abrupt. 

 Mouth small, oblong-acute, filling rather more than a 

 third of the ventral length, rounded and much receding 



The figure (72) in Turton's Manual, is so bad that Pfeitfcr has cited it with 

 doubt (or J. sciniiarum, but from the description (Conch. Diction, p. 63; Man. 

 L. and F. Shells, p. 90) we know it to be intended for oclona. 



