286 INVERTEBRATA OF MASSACHUSETTS. 



Fusus torna'tus. 



Shell Uirreted, coarse, pale-brownish ; lohorls eight, convex, en- 

 circled by elevated bands of a pale chestnut-color ; aperture round- 

 ed, canal short, and strongly recurved. 



Figure 201. 

 Slate Coll., No.. 13. Soc. Cab., No. 2376. 



P^usus tornatus, Gould ; Sillimans Juurn., xxxiii. 107. 



Shell turreted, rough, inelegant, antiquated, dingy-white, or 

 faint brownish horn-color ; whorls eight, very convex, rather ven- 

 tricose, encircled by distant, elevated, light chestnut-colored 

 bands or ribs ; on the upper whorls two of these lines, more 

 prominent than the rest, give them a bicarinated appearance ; 

 on the last but one there are usually three lines, and on the lowest 

 are several others, gradually diminishing in prominence, and 

 never reaching the front, except in immature shells ; sutural di- 

 vision abrupt ; striae of growth quite apparent, but, with these ex- 

 ceptions, the shell has a smooth and worn appearance ; aperture 

 rather less than half the length of the shell, broad-oval, and some- 

 what dilated ; outer lip sharp and somewhat angulated by the 

 most prominent revolving bands ; inner margin covered with a 

 callus in mature shells ; canal short, and very much recurved. 

 Length 2| inches, breadth \\ inch, divergence 50'^. 



From the Bank Fisheries. Taken from cod-fish. Several 

 good specimens of various ages are now before me, for most of 

 which 1 am indebted to the kindness of Colonel Totten. 



This shell is undescribed, unless it be the much-debated and equivo- 

 cal Murex despcctus of Linnceus, about which British writers seem to 

 have been so much puzzled. It differs from the early state of the 

 Fusus anttquus of Linnseus, the F. despectus of most British con- 

 chologists, in the more rounded form of the whorls, and in being des- 

 titute of the net-work formed by the close revolving and longitudinal 

 striae, and it would evidenUy never assume the appearance of a ma- 

 ture F. nntiqiins. 



The only figures I have seen at all resembling this, are figure 1295 

 of Martini, which he regards as a variety of Murex antiquus, as in- 



