542 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.xxiv. 
incremental lines are also conspicuous; canal twisted, recurved, rather 
short and wide, aperture white, body and pillar callous, the latter 
twisted and obliquely truncate in front, forniino- a nearly pervious axis; 
Ion. of shell 25; of aperture and canal 15; max. diam. 12 mm. 
Dredged b}^ the U. S. Fish Commission steamer Alhatross on the 
southeast coast of Kamchatka, at station 364-1:, in 96 fathoms, shelly 
bottom, temperature 33 F. 
This species very much reseml^les TrapJion drourtl Dautzenbcrg 
dredged in some 600 fathoms near the Azores, but is nearly twice as 
large, with a relatively shorter canal. Owing to the low, thick, rib- 
like varices it does not at first recall Boreotmphon so much as some of 
the Fitsus group from deep water. The operculum, however, is like 
that of Trophcmopsis and not like that of Fusus. The species would 
be referable to the group named Pirgos by de Gregorio in 1885, and 
founded on two Pliocene forms from the English Crag. 
BOREOTROPHON ORPHEUS Gould. 
This is Fusus orpheus Gould, 1849, and Tropjhon fabricii Carpenter, 
1863, not of Beck, 1842. The present writer, misled by an error of 
Carpenter, in common with most of the malacologists of the Pacific 
coast, identified this with Troplwii .stuarti Smith for many years, but 
the more careful study of Gould's type and the reception of full- 
grown specimens show that it is a well-defined and distinct, though 
apparently rather rare, species. It may be distinguished from the 
young of B. i^uart! by having more than two spiral threads on the 
upper whorls. Adult it is a much smaller species than stuart!., slender 
and with low numerous varices. It ranges from Vancouver Island to 
Cape Mendocino. 
BOREOTROPHON STUARTI E. A. Smith. 
This fine species was first described in 1880, though it had been well 
known to California collectors for twenty years under the mistaken 
name of Trophon orpheus. It ranges from the Shumagin Islands, 
Alaska, to Santa Cruz, California, in from 16 to 202 fathoms, living 
in shallower water at the north and following the temperature into 
deeper water at the south. It has from seven to twelve varices with 
the interspaces crossed by four or five rounded spiral cords, and 
reaches a length of 52 mm. The varices may be wide and thin with 
prominent spines at the shoulder, or low and hardly stronger than the 
spirals and without an}' spines, a form which has a very difierent 
aspect from that of the type, the cancellation being very conspicuous. 
BOREOTROPHON ( STUARTI var..') SMITHI, new species. 
This form is known to range from Fuca Strait to Santa Barbara, 
California, in 39 to 75 fathoms. It much resembles B. stuaii'ti in 
general, l)ut differs by more slender whorls with a more constricted 
