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370 PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM, 
conspicuous in the grooves, producing a fine decussated structure. On 
the last whorl are fourteen to sixteen of the transverse ribs or folds; 
these become obsolete just below the periphery, so that on the base 
there are only spiral lines and lines of growth. Aperture narrow-ovate. 
Outer lip evenly rounded in the middle, but contracted at the base of 
the canal, which is short, rather narrow, and distinctly recurved. Col- 
umella decidedly curved. Epidermis thin, yellowish white, closely ad- 
herent, with distinct lines of growth. Length, 14.5"; breadth, 7™™; 
length of aperture, with canal, 7"; its breadth, 3°"; length of body- 
whorl, front side, 10°". Stations 891 to 895, 238 to 500 fathoms, with 
the preceding; several specimens, living. 
Neptunea (Sipho) arata Verrill, sp. nov. 
Stations 869 to 880, 893 to 895; common. Nearly all our deep-water 
specimens related to N. Stimpsoni Moreh (= Fusus Islandicus Gould) 
differ widely from the common shallow-water form, in having the whole 
surface much more strongly suleated by broader, deeper, and less 
numerous spiral grooves. On the upper whorls there are seven or eight 
of these broad grooves, separating flattened spiral ridges of about the 
same width; on the last whorls the ridges become broader, and each of 
them is divided at summit by a smaller secondary groove. The canal is 
rather long, slightly recurved. Columella twisted, but not much bent. 
Epidermis not pilose, yellowish brown, often in raised lines along the 
lines of growth. Color within aperture bluish white, the columella and 
canal tinged with flesh-color or pale salmon. Length, 80"; breadth, 
30"; length of aperture, with canal, 45°"; its breadth, 14"”. 
The typical, nearly smooth variety of N. Stimpsoni Morch is perhaps 
the same as NV. glabra Verkruzen, sp. (= Sipho glaber G. O. Sars). 
-Neptunea (Sipho) propinqua (Alder). 
Fusus propinquus Alder, Catal. Moll. North. & Durh.; Jeffreys, British Conch., 
iv, p. 338; v, pl. 86, fig. 3. , 
Neptunea propinqua Verrill, Amer. Journ. Sci., xvi, p. 210, 1878. 
This shell was first taken by us, in 1877, off Cape Sable, and off Hali- 
fax, Nova Scotia, in 88 to 100 fathoms, where it was common. This 
season it occurred in abundance, living, and of good size, in most of our 
outer dredgings, being the most common species of this family, except 
N. pygmea. It occurred at all the stations from 865 to 874, 876 to 880, 
893 to 895, ranging in depth from 65 to 487 fathoms. It was most 
abundant at 869 to 871, 894 and 895, in 115 to 365 fathoms. 
Although it does not agree perfectly with the European specimens of 
N. propingua that I have had for comparison, I have recorded it under 
this name, largely in deference to the opinion of Mr. W. H. Dall, who 
has made a special study of this group, and who has had some of our 
specimens for comparison. 
Tnis shell is somewhat stouter and more ventricose than the ordinary 
forms.of N. Stimpsoni and N. arata, from which it differs, also, in having 
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