Volvauia. MOLLUSCA. SOLENOSTOMATA. 333 



9. V. nodosa. — Ovate, pointed ; obscurely costated, transversely sulcated ; 

 spire with two rows of nodiform spines ; pillar with three folds ; lip striated 

 within Soiver. Min. Conch, t. cccxcix. f. 2.— .London Clay. 



10. V. geminate. — Ovate, ventricose, pointed, costated ; costa? terminated 

 by two obtuse connected spines ; pillar with one large and several small plaits, 

 curved. — Sower. Min. Conch, t, cccxcviii. f. i. London Clay. 



11. V. Lima.— Ovato-elongated, acute, costated, and transversely striated ; 

 costie numerous, dentatocrenated; upper edges of the whorls toothed; pillar 

 with three unequal folds; lip smooth within, its edge crenulated — (Buccinuni 

 scabriusculum, Brander, f. 71.) Soiver. Min. Conch, t. cccxcviii. f. 2. 



Gen. LXVI. VOL V ARIA. — -Spire very short, aperture nar- 

 row, the length of the shell ; pillar plaited ; extremity of 

 the canal effuse. 



297. V. pallida. — Shell cylindrical, smooth, glossy, with four 

 strong folds on the pillar. 



List. Conch, t. Dccxiv. f. 70. outer fig Voluta pall. Linn. Syst. i. 1189. 



K Adams, Linn. Trans, iii. 253 — Bulla pall. Don, Brit. Shells, t. lxvi. — 



Vol. pal. Mont. Test. Brit. 232 — English coasts, rare. 



Length half an inch, breadth a quarter ; separating line scarcely visible ; 

 outer lip straight, inner lip slightly concave at the pillar ; the four teeth 

 nearly of equal size. 



298. V. alba, — Shell oval, white, faintly striate longitudinal- 

 ly ; with two folds on the pillar. 



Voluta alba, Mont. Test. Brit. 235. Turton's Conch. Diet. 250.— Ire- 

 land and Scotland, rare. 



Length about ^gth of an inch, breadth §ds less ; oval, tapering to an ob- 

 tuse point, whorls five or six, quite flat, and not visibly raided; the first very 

 large, and occupying three-fourths of the shell ; aperture narrow, oval ; pillar 

 quite smooth, sometimes a little spread — This species, as described by Dr 

 Turton, from specimens found in Dublin Bay, (and which, according to Mr 

 Lowe, (Zool. Journ. ii. 100'.) agree with those found at Oban in Argyllshire), 

 seems to differ from the specimen described by Montagu, in the Supplement 

 to Test. Brit. 103. as having been found by Mr Laskey at Dunbar, and which 

 is stated as having four folds on the base of the pillar, besides some slight 

 ienticulations higher up. 



EXTINCT SPECIES. 



1. V. acutiuseula. — Nearly cylindrical, with a pointed apex ; spire conceal- 

 ed ; strite numerous, composed of squarish impressions ; plaits upon the pil- 

 lar variable. — Sower. Min. Conch, t. cccclxxxvii — London Clay. 



Gex. MITRA. — Turrited, pillar plaited, the anteal folds the 



smallest ; extremity of the canal emarginate. 



1. M. Lamberti — Fusiform, short, smooth; base elongated, obscurely trun- 

 cated ; pillar with three or four plaits ; aperture acute above, outer lip sharp, 



not expanded towards the base Voluta Lamberti, Sower. Min. Conch, t. 



exxix.— • Crag Marl. 



