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MOLLUSCA. SOLENOSTOMATA. Voluta. 
VOLUTADJ^. 
Gen. LXV. VOLUTA. — Pillar plaited, the anteal folds the 
largest ; extremity of the canal emarginate. 
296. V. catenata . — Shell pellucid, white, with four spiral 
bands of opake white spots, connected by rufous streaks. 
Mont. Test. Brit. 236. t. vi. f. 2.— Coast of Devon, Mr Swainson, Dund- 
bar, Mr Laskey. 
Length |ths, breadth |th, of an inch; shell strong, spire nearly con- 
cealed ; body-whorl slightly conical ; aperture the whole length of the shell ; 
outer-lip obsoletely denticulated within ; pillar-lip thick, with two strong 
and two faint folds. 
EXTINCT SPECIES. 
1. V. -Shell ovate-acute, covered with tubercular spines, termi- 
nating longitudinal ribs, transversely striated or sulcated ; whorls concave 
above, with a rounded edge ; outer lip plain wdthin ; aperture oblong — 
(Strombus dubius, Brander., f. 68.) — Sower. Min. Conch, t. cxv. f. 1, and 
t. cccxcvii. — London Clay. 
2. V. spinosa — Ovate-acute, ventricose, covered with large spines, extending 
into the longitudinal ribs, and a row of smaller spines near the upper edge 
of the whorl ; whorls concave above, transversely striated below ; aperture 
ovate, elongated ; outer- lip plain within. — (Strombus luctator, Brander, f. 56.) 
— Soiver. Min. Conch, t. cxv. f. 2, 3, 4 — London Clay. 
3. V. suspensa — Ovate, pointed, obscurely costated, transversely striated ; 
spire with a broad canal^around it, bounded by an erect, flat, dentated crown ; 
base produced — (Murex suspensus, Brander^ f. 70.) — Sower. Min. Conch, 
t. cxv. f. 5 London Clay. 
4. V. Ovato-fusifonn, acute, costated, striated, with about three 
plaits on the pillar. — {Brander^ f. 45.) Sower. Min. Conch, t. ccxc. f, 1, 2, 4.— 
Lmdon Clay. 
5. V. Magorum. — Ovato-fusiform, obtuse, costated, obscurely striated; 
with many plaits upon the pillar.— Min. Conch, t. 290. f. 3 Londmi 
Clay. 
6. V. Athleta. — Rhomboidal, ventricose, acute, crowned with large spread- 
ing spires ; base obscurely sulcated ; pillar with three unequal folds ; lip plain 
within. — (Strombus Ath. Brander, f. 66.) Sower. Min. Conch, t. cccxcvi. f. 1, 
2, ^.-.-London Clay. 
7 . V. Ovato-rhomboidal, acute, costated ; crowned with one 
series of erect spines ; base sulcated ; piUar with one fold ; lip smooth within. 
—.(Strombus luctator, Brander, f. 67,) Sower. Min. Conch, t. cccxcvi. f, 4 
L(^on Clay. 
8. V. amhigua — Shell ovato-elongated ; acute, costated, transversely sul- 
cated ; costae angular above ; spire rough ; pillar with three plaits; lip plaited 
within, its edge granulated, aperture narrow above.— (Strombus ambiguus, 
Brander^ f. 69.) Soiver. Min. Conch, t. cccxcix. f. i.^London Cloy. 
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