xlvil 



FUSUS. 



* Destitute of longitudi- 

 nal ribs. 



Antique, 200. 



Corneus, 200. 



Carinatu*, 200. 



Retroversus, 201. 



Norwegicus, 207. 



Turtoni, 208. 



** With 



ribs, or rows of tu- 

 bercles. 



Turricula, 201. 



Buchanensis, 202. 



Proximus, 202. 



Costatus, 202. 



Attenuate, 203, f. 94. 



Nebula, W3,f. 93. 

 Rufus, 204. 

 Gyrinus, 205. 

 Purpureus, 205, /. 95. 

 Barvicenstis, 206, /. 2. 

 ^m/M^, 206, /. 96. 

 Muricatus, 206, /. 97. 

 Fenestratus, 207. 

 PYRULA. 

 Carica, 208. 



TRICHOTROPIS. 



Umbilicatus, 209, /. 54. 



Erinaceus, 210. 

 APORRHAIS (ROS- 



TELLARIA). 

 PesPelicani,2Ll. 



vated longitudinal ribs, the interstices smooth ; spire 

 about equal in length to the body-whorl; aperture 

 very narrow, outer lip thickened, the emargination at 

 the suture. O^O..^'^. A few specimens of this rare 

 shell are in the cabinet of W. Metcalfe, Esq. who pro- 

 cured them on an islet near Guernsey. When worn the 

 entire base is of a chesnut colour. 



