142 CONCHOLOGY. 



C. reticulata. The reticulated Cancellaria. PL 25, 

 fig. 5. 



Oval, strong, ventricose ; columella with three plaits ; 

 distant, coarse, reticulated striae ; sometimes with yellow or 

 orange bands ; aperture white. 



5. Fasciolaria. Eight species. 



This genus was separated by Lamarck from the Murex 

 of Linnaeus on account of having no varices. 



Shell fusiform or sub-fusiform ; aperture middling, elon- 

 gated, almost symmetrical, terminated by a rather long 

 straight tube ; external edge sharp ; the columeilar edge 

 with two or three oblique plaits. 



Fasciolaria tulipa. Fasciolaria coronata. 



F. distans. F. filamentosa. 



F. trapezium. F. ferruginea. 



F. aurantiaca. F. tarentina. 



F. tulipa. The tulip Fasciolaria. PI. 25, fig. 4. 

 Species fusiform, not tuberculated. 



F. trapezium. The striped tower Fasciolaria. 



Species fusiform, volutions tuberculated, ventricose ; red- 

 dish fawn coloured, with transverse double, slightly undu- 

 lated lines ; inside of aperture with reddish striae. 



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. 



Shell covered with epidermis, rough, fusiform, or ventri- 

 cose in the middle ; prolonged behind by the spire, but par- 

 ticularly forward by the canal ; aperture oval ; the colu- 

 meilar edge straight or nearly so ; the exterior edge sharp ; 

 operculum oval, horny, with sub-concentric elements, and 

 summit lateral. 



