VoLVARiA. MOLLUSCA. SOLENOSTOMATA. 333 



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

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

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



10. V. geminata Ovate, ventricose, pointed, costated ; costae 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. iirna.— Ovato-elongated, acute, costated, and transversely striated ; 

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

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

 scabriusculum, BraJider, f. 71-) Sower. Min. Conch, t. cccxcviii. f. 2. 



Gen. LXVI. VOLVARIA. — 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. 



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



Vol. pal. Mojit. 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, 3Ionf. Test. Brit. 235. Turton's Conch. Diet. 250.— Ire- 

 land and Scotland, rare. 

 Ijength about Jgth of an inch, breadth |ds less ; oval, tapering to an ob- 

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

 large, and occupying tbi'ee-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. 106.) agree with those found at Oban in Argyleshire), 

 seems to differ from the specimen described by IMontagu, in the Supplemer.t 

 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 

 denticulations higher up. 



EXTINCT SPECIES. 



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

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

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



Gen. 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 liamberti, Sower. Min. Conch, t. 



cxxix.— Cra^f Marl. 



