192 
MARINE SHELLS OF WEST COAST OF NORTH AMERICA 
Testa unicolor badia 70 mm. longa, 36 mm. lata laeviuscula, ad longi- 
tudinem haud regular iter plicata. Anfractus sex parum tumidi, ultimos per- 
magnus circa %o longitudinis testae adaequans. Apicis formatio ut in specie 
antecedente.—A Fuso (Srromb.) norvegico Chemn. C. C. vol. X. pag. 3-8, 
Tab. 157, fig. 1497 et 1498, spira breviore, cauda minus curvata, colore 
obscuriore et statura minore paullo aliena differre videtur. Genus Mollus- 
corum neptunea Bolten, anno 1798 creatum, omnes eos Fnsos vcntrosos 
sensu Lamarckinano complectitur, qui rostro brevi gaudent ut Mur ex 
antiquus Linnaei aliique. (Morch.) 
Shell ovate, badia, thin smoothish, spire projecting, apex obtuse; six 
convex whorls, divided by a profound suture, with plications of growth 
not regularly arranged, the last one very large; aperture large, oblong; 
columella slightly sinuate and barely callous; short broad tail subcurvate; 
outer lip simple; cheeks milk-white, subrosy. N. Neptunea castanea 
Morch in sched. 
From the Island of Sitka. Exists in the notable Romberg collection 
at Hamburg. Unicolored shell, of length 70 mm.; breadth not given. 
Smoothish, not regularly plicate longitudinally. Six whorls slightly tumid, 
the last one very large, equally %o of the length. The form of the apex 
as in the preceding species. From Fusus norvegicus this is seen to differ 
in shorter spire, the tail less curved, color more obscure, smaller size. 
The genus of Mollusca neptunea of Bolten, created in the year 1798, 
embraces all those ventricose Fusus in the Lamarckian sense which possess 
a short rostrum, as Mur ex antiquus Linne. (Translation.) 
Type in Zoological Museum, Copenhagen. Type locality, 
Range. Pribilof, Aleutian, and Kodiak Islands and Sitka, Alaska. 
Genus BERINGIUS Dali, 1879 
Shell dextral, large solid, the spire usually longer than the aperture; 
the sculpture very variable but usually strong; the periostracum thin, 
dehiscent; the nucleus swollen, with several hardly increasing whorls 
forming a subcylindrical tip to the spire in most cases; aperture of mod¬ 
erate size, the outer lip slightly expanded and hardly thickened; pillar 
smooth, short, callous; canal short, wide hardly recurved; operculum 
smaller than the aperture, subovate with apical nucleus; radula peculiar, 
with an edentate rhachidian plate, the laterals formed by single strong 
cups with the tip incurved and two or more small blunt denticles on the 
inner edge near the middle. (Dali.) 
Type. Chrysodomus crebricostatus Dali. 
Distribution. Arctic to British Columbia, Japan. 
[192 1 
