GASTEROPODA. 235 
rib, and terminate on the succeeding one, two or three on the upper 
whorls, five or six on the last, neither set continued upon the beak. 
Whorls six, with a broad shoulder near the suture, angular, the last 
two-thirds the length of the shell, ventricose above, the lower half ter- 
minating in a slender beak, a little recurved. Aperture half the length 
of the shell, elliptical; lip angular posteriorly, a little everted, sharp 
and simple; pillar with a slight intrusion at the commencement of the 
canal ; interior pale flesh-colour. 
Length half an inch; breadth one-fifth of an inch. 
Inbabits Puget Sound, Oregon. C. Pickering. 
More slender, the beak longer, the longitudinal bars less numerous 
and more lamellar than in F. fidicula; in form it is more like 1m, 
bamffius. 
Figures 285, 285 a, two views of the shell, enlarged. 
Fusus susiutus (Gould). 
Testa parva, tenuis, elongata, pallida vel ad basim et ad suturam hvida, 
longitudinaliter costata, costis ad duodecim erectis, obtusis, ad suturam 
haud attigentibus, sed secundum rostrum productts : sptra acuto-conica, 
anfractibus septem ad octo convexis, apicalibus levibus, alteris minu- 
tissimé decussatis, ultimo sub-globoso dimidiam teste longitudinis 
adequante: apertura angusta, posticé angulata ; labro postice arcuato ; 
Sauce castanea, albo-fasciata. 
Fusus sublutus, Goutp; Proceed. Boston Soc. Nat. Hist., in. 142. 
May 1849. Expedition Shells, 65. 
SHELL small, thin, elongated, turreted, livid at base and sutures, 
the central portion of each whorl pale cinereous when dry, with longi- 
tudinal, erect, obtuse ribs, not quite attaining the suture above, but 
extending to the beak, twelve on the last whorl; interspaces about 
equally broad, very minutely striated with lines of increment, and 
also by evanescent, microscopic, epidermal, transverse lines. Spire 
acutely conical, whorls seven or eight, apicial ones smooth, convex, 
