fusus. 73 



sequanti. — Of a much finer sculpture than F. Novse-hollandise, 

 with rounded upper, and slightly angular lower whorls. The 

 ribs are rounded and the canal and spire about equal in length. 



18. Pfeifferi, f. 156, Dunker. — Testa alba, epidermide 

 fusco induta, spiraliter subdistanter lirata ; anfractibus 8 

 prominulis (sutura paulo excavata), longitudinaliter leviter 

 plicatis ; eanali angusto, recto. — A small shell, figured by 

 Philippi, and resembling F. Novce-hollaruMce, from which it 

 differs in size and proportions. 



19. NovtE-hollandi/E, f. 26, Reeve. — Testa alba, epider- 

 mide subrugosa fusca induta, latiuscula, liris prominentibus 

 distantibus spiraliter cincta, spira breviuscula anfractibus 9 

 brevibus, latis, rotunde plicatis ; apertura ovata, margine 

 crenato, eanali crasso rectiusculo. — This species may be dis- 

 tinguished by the vertical distance between the smooth spiral 

 ribs. 



20. gracillimus, f. 10, Adams. — Testa fusca elongata 

 angusta, spira quam canalis brevior, anfractibus 1 1 rotundis, 

 brevibus, longitudinaliter plicatis, spiraliter costatis, eanali 

 angustissimo elongato ; apertura parva, margine crenato. — A 

 remarkably narrow brown shell with the whorls rounded and 

 regularly plaited. The canal is long, narrow, and straight. 



21. tukricula, f. 24, Kiener. — Testa alba, subrugose 

 spiraliter costata, interstitiis profundis, spira breviuscula, 

 anfractibus 7 prominente rotundis ; plicis rotundis, crassis, 

 regularibus, costatis ; sutura profunde excavata ; eanali elon- 

 gato tortuo ; apertura subovata, margine crenato. — With 

 rounded, strongly-ribbed whorls, and a profoundly excavated 

 suture. 



22. multicarinatds, f. 23, Lamarck. — Testa quam F. tur- 

 ricula magis ventricosa, baud tantum profunde ad suturam 

 excavata, plicis haud tantum prominentibus. — It is difficult 

 at first sight to distinguish between this and the preceding 

 species. The difference consists in the greater prominence of 

 the plaits and whorls and the deeper excavation of the suture 

 in F. turriculum. See note on Plate-description IV. 



23. spiralis, f. 37, A. Adams. — Testa alba, spiraliter 

 acute carinata, spira obtusa, anfractibus 7 scalariformibus, 

 valde prominentibus, angulatis, ad angulum acute tubercu- 

 latis, sutura contracta. — White, scalariform, sharply keeled, 

 sharply tubercled on the central keel of all but the last 

 whorl. 



