than those inchided in the bands occur between the same, and in line with the 

 longitudinal markings. 



Dimensions of largest : Long. 2.35 ; lat. 1.22 inches. Another specimen 

 measures : Long. 2.15; lat. 1.1 inches. 



Habitat. — Gulf of California, from whence specimens are occasionally brought 

 to San Francisco on vessels in the Gulf trade. It is not common. 



Figure 70 in Sowby's Conch. lUustr. without habitat, and named " C. textile 

 var." resembles this species. Specimens are in my collection and in that of Mr. 

 Fisher of San Francisco. 



This shell belongs to the group of so-called " embroidered cones" of which C. 

 textile is the most common illustration, and it might carelessly be mistaken for 

 that species ; in C. textile however the white (in cleaned specimens) is the dom- 

 inant color, and the triangular blotches of white are large and sharply defined 

 by a line of brown, and there is but little blending or coalescing of the brown 

 and yellow lines, which are much sharper and more distinct as well as of a lighter 

 shade and narrower than in C. Dalli. C. textile is of a clear whiteness interiorly, 

 while the shell described herein has a delicate pinkish interior ; in textile the 

 spire is somewhat concave, in DalU it is moderately convex ; and the latter in 

 outline is a less graceful shell, and belongs to a widely separated zoological 

 province. 



Ptychatractus occidentalis. Stearns. 



P. occidentalis, Stearns, Prel. Descr. August 28, 187L 



Shell elongated, fusiform, rather slender, whitish, traversed by narrow, revolv- 

 ing, brownish threads and much wider intervening spaces ; suture distinct, spire 

 tapering ; aperture oblong-oval, about half the length of the shell ; within white, 

 polished; canal short, nearly straight; columellar obliquely, not strongly pli- 

 cated ; length about three-fourths of an inch. 



Habitat. — Near the Island of Nagai, one of the Sliumagin Islands, where it 

 was hooked up attached to a rock from a depth of forty fathoms, by (Japtain 

 Prime of the California Fishing fleet ; through the kindness of Mr. Harford 

 to whom it was given, it is now in my cabinet. 



This shell in its general features resembles the North Atlantic P. ligatus of 

 Mighel and Adams, vide Boston Jour. Natl. Hist., IV, 1842, p. 51, pi. iv., tig. 

 17. It is a more delicate shell than the Atlantic species, though my solitary 

 specimen, judging by the thinness of the outer lip. is not quite mature. I re- 

 gret that I am unable at present to furnish figures of this and the succeeding 

 species, the specimens having inadvertently been mislaid. 



Fusus (Chrysodomus ?) Harfordii, Stearns. 



F. (C.) Harfordii, Stearns, Prel. Descr. August 28, 1871. 



Shell solid, elongate, regularly fusiform ; spire elevated, whorls six or seven, 

 Ynoderately convex, slightly flattened (in outline) above, with a groove or chan. 

 nel following the suture; color, chocolate brown; surface marked by numerous 

 narrow revolving cost;e, which alternate in prominence on the body whorl, and 

 longitudinally by tine incremental sLriaj, and on the upper whorls by obtusely 



