NO. 2295. NEW NORTH PACIFIC MOLLUSKS—DALL. 325 



BUCCINUM SOLENUM, new species. 



Shell of moderate size, acute, white \inder a dehiscent straw- 

 colored periostracum, with a strongly constricted suture and about 

 six slightly shouldered somewhat rotund whorls, exclusive of the (lost) 

 nucleus ; the whorls of the spire are numerously ribbed (about 20 on 

 the penultimate whorl), with sliglitly oblique riblets most emphatic 

 on the shoulder, obsolete at the periphery and on the last whorl ; the 

 incremental lines are prominent, close, and threadlike; spu'al sculp- 

 ture of very minute, closely undulated, close-set striae, which gave a 

 somewhat granular or punctuate aspect to the intervals between the 

 axial threads ; on the periphery of the last whorl are a few obsolete, 

 stronger spirals; aperture wide with a conspicuous gutter somewhat 

 in front of the shoulder in the outer lip ; a glaze of enamel on the body 

 and pillar, a short shallow recurved canal, and a well-marked siphonal 

 fasciole; the operculum nearh" circular, laminose externally, with 

 central nucleus. Height of shell, 47; of last whorl, 34; diameter, 

 30 mm. U. S. Nat. Mus. Cat. No. 222485. 



Type-locality. — U. S. Fish Commission station 3518, off Nimivak 

 Island, Bering Sea, in 36 fathoms, mud; bottom temperature, 40° F. 

 Also off Unimak Island in 46 fathoms. 



This is nearest to some mutations of B. polare Gray, 1839. 



BUCCINUM CHARTIUM, new species. 



Shell of medium size, white, with a ver}' pale olive-gray, thin, 

 dehiscent periostracum, with about eight gradually increasing whorls 

 (the nucleus defective) separated by a well-marked suture; spiral 

 sculpture of three rather prominent subequal cords, one at the shoul- 

 der, one at the periphery, and one midway between the others, the 

 interspaces equal, wider and carrying two or three intercalary alter- 

 nating threads ; on the last whorl in the type-specimen, in front of the 

 periphery, are about 20 subequal and equally spaced flattish threads 

 with narrower very shallow interspaces ; the canal has no spu-al sculp- 

 ture ; axial sculpture of fine vertical threads v.dth Avider interspaces ; 

 aperture more or less sinuous behind, slightly reflected; body white, 

 erased, pillar nearly straight; canal short, wide, recurved with a 

 feeble fasciole; operculum small, smooth, concave, with the nucleus 

 somewhat to the left of the center. Height of shell, 60; of last 

 whorl, 32; diameter, 44 mm. U. S. Nat. Mus. Cat. No. 226270. 



Type-locality. — U. S. Bureau of Fisheries station 3709, off Honshu 

 Island, Japan Sea, in 260 fathonxs, muddy bottom. 



The specimen is a female. 



BUCCINUM PEMPHIGUS, new variety MAJOR. 



Male shell, large, thin, inflated, white with an adherent olivaceous 

 periostracum, with seven whorls exclusive of the minute (eroded) 



