_T. scolymus._ The artichoke Turbinella. Species turbinated and spinous. _T. infundibulum._ The funnel-shaped Turbinella. Species turreted and fusiform. _T. pyrum._ The pear-shaped Turbinella. Species with spire short, mucronate; apex mammiliform, beak long; columella with four plaits; colour yellowish white, with irregular reddish brown spots. 4. Cancellaria. Twelve species. This genus is not given by De Blainville precisely like Lamarck, as he has removed those that are greatly canaliculated either to the Murex or Turbinella. They are all marine shells, and greatly approximate the last-mentioned genus. Shell oval, globular, ventricose, rugged; the spire middling, pointed; aperture ovate, enlarged, grooved, and sometimes sub-canaliculated anteriorly; the right edge effuse, concave, sharp; the left or columellar edge almost straight, and marked in the middle by two or three plaits; operculum horny. Cancellaria reticulata. C. asperella. C. scalaria. C. scalariformis. C. nodulosa. C. cancellata. C. senticosa. C. citharella. C. spirata. C. obliquata. C. rugosa. C. Ziervogeliana. _C. reticulata._ The reticulated Cancellaria. Pl. 25, fig. 5. Oval, strong, ventricose; columella with three plaits; distant, coarse, reticulated striæ; sometimes with yellow or orange bands; aperture white. 5. Fasciolaria. Eight species. This genus was separated by Lamarck from the Murex of Linnæus on account of having no varices. Shell fusiform or sub-fusiform; aperture middling, elongated, almost symmetrical, terminated by a rather long straight tube; external edge sharp; the columellar edge with two or three oblique plaits. Fasciolaria tulipa. F. distans. F. trapezium. F. aurantiaca. F. coronata. F. filamentosa. F. ferruginea. F. tarentina. _F. tulipa._ The tulip Fasciolaria. Pl. 25, fig. 4. Species fusiform, not tuberculated. _F. trapezium._ The striped tower Fasciolaria. Species fusiform, volutions tuberculated, ventricose; reddish fawn coloured, with transverse double, slightly undulated lines; inside of aperture with reddish striæ. _F. filamentosa._ The threaded Fasciolaria. Species turreted and tuberculated. 6. Fusus. Thirty-six species. Likewise taken from the Murex; they are marine shells, of an elongated fusiform shape, with whorls ventricose in the middle or at the lower extremity.