530 PROCEEDINGS OF THE NATIONAL MUSEUM. voi,.xxiv. 
BERINGIUS CREBRICOSTATUS Dall. 
Plate XXXV, fig. 1. 
Chrysodomns rrebricostatus Dall, Proc. Cal. Acad. Sci., VII, 1877, p. 6. 
Chrysodomus ( Beringms) crebHcostatus Dall, Sci. Expl. Alaska, Bucdnidx, 1879, 
pi. II, tigs. 1, la-c; Proc. U. S. Nat. Mus., IX, 1886, p. 304; XVII, 1«94, p. 710. 
Unala.ska, Aleutians, in 100 fathoms, Dall; Aleutian Islands and the 
Shumagin Islands, U. S. Fish Commission. U.S.N.M., 122716. 
This magnificent shell is perhaps the finest species of the family. 
It is white with a darker flush in the throat, and covered with a bright 
yellowish periostracum. 
BERINGIUS.? KENNICOTTII Dall. 
Plate XXXV, fig. 3. 
Buccinum kemiicotlii Dall, Am. Journ. Conch., VII, 1871, Pt. 2. p. 108, pi. xv, fig. 1. 
Chrysodomus kennicottii Dall, Proc. Cal. Acad. Sci., IV, 1872, p. 271; Sci. Expl. 
Alaska, Bucdnidse, 1879, pi. iv, figs. 1, la. 
Neptunea behringi Kobelt, Conch. Cab., 2d ed., Pyrula and Fusus, 1881, p. 68; 
not of Middendorff. 
The Kadiak group of islands is the headquarters of this species, 
which extends to the Shumagins and westward, but not abundantly 
west of the peninsula. It occurs in shallow water, during the spawn- 
ing season, but at other times retires to 10 or 15 fathoms depth. 
U.S.N.M., 108992. 
This species has a handsome light-brown periostracum, under which 
the shell is white or purplish, sometimes pinkish in the aperture. It 
is uncertain whether it should be referred to Volutojjsius or to 
Berin<jhis^ as the dentition has not been examined, but the very 
cylindrical nepionic whorls rather point toward the latter. 
Genus LIOMESUS Stinipson. 
Liomefus Stimpson, Canadian Nat., new ser., II, Oct., 1865, p. 364. 
Buccinopsis Jeffreys, not of Conrad. 
LIOMESUS NUX Dall. 
Plate XXXVIII, fig. 7. 
Liomcsus mix, Dall, Proc. Cal. Acad. Sci., VII, Mar., 1877, p. 7 (p. 2 of extras). 
Buccinopsis mix Kobelt, Conch. Cab., 2d ed., Buccimim, 1883, p. 101, j)!. 
LXXXVIII, fig. 4. 
East shore of Nagai Island, Shumagins, and at Unalaska in 15 fath- 
oms, Dall. U.S.N.M., 94785. 
The shell has a purplish brown substratum more or less obscured by 
a creamy white outer coat, and in life is covered by a dense velvety 
periostracum. It is remarkably solid and heavy for its size. The 
genus is J3uccinopsl,s Jeft're}- s not Conrad, and Liomef^m of Stimpson in 
allusion to its unarmed central teeth of the radula, which resemble 
those of Berlnylus. 
