N0.1264. ILLUSTRATIONS OF AMERICAN SHELLS— BALL. 529 
iiperture. I am very confident that the receipt of adult specimens 
of Y. herinyii will confirm my present opinion of the specific distinc- 
tion of the two forms. 
VOLUTOPSIUS CASTANEUS Morch. 
Plate XXXVI, %. 2. 
Neptunea cftiitdiiat INIorch, Novit. Conch., 1858, p. 7. 
Neptunea Jiadia Mokcii, Novit. Conch., 1858, pi. i, figs. 1,2. 
Siromfielld atstanea Dali,, Sci. Expl. Alaska, Buccinidw, 1879, pi. 1, figs. 4, 4a. 
Aleutian Islands and eastward to Kadiak, in shallow water. 
U.S.N.M,, 108UU1. 
An abundant species, usually of a livid brown color, rarely white, 
and with no visible poriost-racum. The surface is always rude, irreg- 
ularly wrinkled, and destitute of any spiral sculpture. Morch gave 
one name to it in the text of the Novitates, which I have adopted, but 
another appears by some error on the legend of the simultaneously 
issued plate. 
VOLUTOPSIUS ATTENUATUS Dall. 
Plate XXXVI, fig. H. 
]'<,/iiloj>sis (itli'muttd Dall, Proc. Cal. Acad. Sci., V, 1874, p. 252. 
StromheUa attenuatu Dall, Sci. Expl. Alaska, Buccinid<r, 1879, pi. i, fig. 2. 
Bering Strait and adjacent Arctic waters. 
The type specimen was obtained at Cape Espenl^erg by Capt. K. PI 
Smith. U.S.N.M.. loSiH!). 
This is a W'hite, delicately spirally striated shell which appears to 
be rather rare, as only two or three specimens of it have come under 
niN' observation. 
VOLUTOPSIUS REGULARIS Dall. 
Plate XXXVI, fig. (>. 
Volutopsii< hcringi var. reijularis Dall, Proc. Cal. Acad. Sci., V, 1873, p. 59, 
pi. II, fig. 6. 
Strombelln regidaris Dall, Sci. Expl. Alaska, BucrinkLv, 1879, pi. i, figs. 5, 5a. 
Aleutian and Shumagin Islands, Alaska; rare. U.S.N.M., 108978. 
This species is snow-white, with no visible periostracum, regularly 
formed, smooth, and, while smaller, has a proportionately more ele- 
vated spire than V. (ui.sfiouii.s. 
Genus BERINGIUS Dall. 
BeritHjius Dall, Sci. Expl. Alaska, Bnccinidiv, 1879, jil. 11, figs. 1, la-c (sole 
example, ('hrysodomus trebricostotus Dall); Proc. U. S. Nat. Mus., IX, 1886, 
p. 304; X\U, 1894, p. 710. 
Jumala Friele, Norwegian N. Atl. Exp., 1, 1882, p. 6 (type, Fums turtoni Bean); 
Ann. Mag. Nat. Hist, Nov., 1893, p. 352, oUni. 
Ukko Friele, in Norman, Ann. Mag. Nat. Hist., ()th ser., XII, 1893, p. 352. 
Proc. N. M. vol. xxiv— 01 34 
