NO. 1264. ILL USTRA TIONS OF AMERICAN SHELLS— BALL. 543 
suture, relatively wider varices, and the absence of any spiral sculp- 
ture. It has six to eight varices, very thin, wide and sharp with high, 
strongly recurved spines at the shoulder. It reaches a length of 47 
and a width of 23 mm. with six whoj'Is exclusive of the nucleus. The 
canal is strongly recurved and imbricating remnants of old canal ends 
are noticeable on the siphonal fasciole. It may, perhaps, prove to be 
a deep-water form of B. stnarti, but if so it is 3^et to be shown by 
intermediate mutations. It is of a whitish color with a pale-brown or 
yellowish periostracum. U.S.N. M., 122582. 
Section BOREOTROPHON s. s. 
BOREOTROPHON PEREGRINUS. new species. 
Shell small, yellowish white, with eight whorls; nucleus rounded, 
smooth, tilted, with a whorl and a half; subsequent whorls with seven 
or eight procumbent broad varices, strongly angulated at the shoulder, 
where the varices form compressed elevated spines; behind the angle 
the whorl is somewhat excavated; base of the whorl constricted with 
a short, recurved, imbricate canal; aperture squarish, white within; 
surface with tine spiral striation; Ion. of aperture and canal 12, of 
shell 23 mm. ; max. lat. 11 mm. 
Dredged off Catalina Harbor, Santa Barbara Islands, California, in 
16 fathoms, gravel, by W. H. Dall in 1873. 
This pretty little species strongly recalls the Japanese Troplion 
candcJahriun Adams and Reeve, but differs in being relatively stouter 
and shorter, with procumbent instead of erect varices, a shorter canal, 
an absence of the brown painting of the Japanese species, and the 
presence of spiral striation. From B. viultlcostatus Eschscholtz it 
differs in color and varical sculpture, having also a proportionately 
shorter spire. The varices are so broad and procumbent that, when 
they are unbroken, the varix covers not only the interspace in front 
of it but also part of the next varix, but without adhering to the whorl. 
BOREOTROPHON MULTICOSTATUS Eschscholtz. 
This is the J^n.-oi-s ///ultico,s/atu.-< Eschscholtz, 1S2H, the Ti'ophon gun- 
ner!, and Polyjylex (/racUis of Carpenter, 1863, not of Loven, 1846, or 
Perry, isll. It has been generally consolidated with ^. gunneri or 
B. ddfhratii.s by authors. It is certainly near to B. gunneri^ which is 
the later name, but I am inclined to believe it distinct. The typical 
B. gunneri of Loven has a smaller and less solid shell, with a larger 
average number of varices and less tabulated whorls, above which the 
varical spines are more elevated. I have never seen among the 
Atlantic shells the livid brown throat which is so general in those from 
the Paciffc. In the latter the canal is stouter, relativel}'^ shorter and 
wider. G. O. Sars gives as an average length for B. gunneri 21 mm.; 
among adult multico8tatus a length of 36 nun. is not uncommon, 
