FUSIN.E. 



77 



Spi. Muricidea (part), Swains. 



Ex. T, Patagonicus, D' Orhigny , pi. 8, fig. 3. Operculum, 

 T. laciiiiatus, Martini, fig. 3, a, 3, h. Shell, T. Geversia- 

 iius, Pallas^ fig. 3, c. 



The species of this genus are natives of cold climates, be- 

 longing for the most part to the arctic and boreal seas ; 

 they are inhabitants of deep water, and, besides their laci- 

 niated or lamellar varices, may be known by their pecu- 

 liar texture and the dark colour of the interior of their 

 apertures. 



Species of Trophon. 



Bamffius, Fenn. 

 Barviceusis, Johnst. 

 borealis, lleeve. 

 Branscombiij Glk. 

 buccineus, Brug. 

 candelabrum, Adams and 



Reeve. 

 cinereus, Say. 

 clathratus, Linn. 

 corrugatus, Reeve. 

 crassilabrum, Gray. 

 cretaceus, Reeve. 

 craticulatus, Fahr. 

 crispus, Coidh. 

 decolor, Fhil. 

 duodecimus, Gray. 

 fructicosus, Goidd. 

 Geversianus, Fallas. 

 Gunneri, Loven. 



incisus, Gould. 

 inermis, Soiv. 

 labiosus, Gray. 

 laciuiatus, Mart. 

 liratus, Gouth. 

 Mexicanus, Reeve. 

 minutisquamosus, Reeve. 

 multicostatus, Eschsch. 

 muricatus, Mont. 

 muriciformis, King and Brad. 

 Orpheus, Goidd. 

 pallidus, Sow. 

 Patagonicus, D'Orh. 

 Peruvianus, Brug. 

 plumbeus, Fhil. 

 scalariformis, Goidd. 

 senticosus, Lavi. 

 Stangeri, Gray. 

 vaginatus, Fhil. 



Sub-fam. FUSING. 



Operculum ovate, acute, nucleus apical. Shell more or 

 less spindle-shaped, varices rudimentary or wanting. 



