120 VOLUTOPSIS. 



The much produced spire and very short canal serve to dis- 

 tinguish this from the preceding species. The egg-capsules, 

 according to Jeffreys, " are pale orange, either solitary, or two 

 together, and attached side by side, not to each other, but to a 

 rather broad membraneous substratum ; they are triangularly 

 oval, the base being the narrowest part, and consist of an outer 

 filmy sheath and an inner and thick fibrous case ; the latter 

 resembles in structure a cocoanut husk ; the opening is a wide 

 slit at the top. Mr. Howse found six young in one capsule. 

 The fry are almost cjdindrical, and of a dark reddish brown hue. 

 The shell goes by the name of ' long neck ' among the Straithes 

 fishermen." 



Sars has separated this shell from Neptunea, appropriating to 

 it the generic name Chrysodomus, Swainson, a name usually con- 

 sidered synonymous with Neptunea. The distinctive points are, 

 of the shell as stated above, a somewhat different dentition (PI. 

 26, fig. 16), and operculum (fig. 283). I suppose that these char- 

 acters might be sufficient for the separation of a group, but the 

 opercula and dentition of so many species of Neptuniinaa being 

 unknown, it is perhaps most advisable to make no separation at 

 present. 



N. CALLORHINA, Dall. PI. 49, fig, 287. 



Shell white, solid, smooth, with faint traces of revolving striae ; 

 spire acute ; embryonal whorls very minute, not mammillate ; 

 suture distinct, not channelled ; canal very short, wide, straight ; 

 aperture rounded, outer lip thickened, strongly waved behind ; 

 posterior angle not acute ; whorls, seven evenly tapering, not 

 inflated. Length, 2 inches ; width, *9 inch. 



St. Paul Island, Behring Sea. 



Found two specimens dead, on Fur Seal Rookery. The apex 

 alone would distinguish it from any described species. 



The above is Mr. Pali's description. I have not seen it. 



N. HALLII, Dall. PL 49, fig. 285. 



Suture subcanaliculate, not deep, but very distinct; canal 

 rather long (says Dall, but his figure does not show it so). White, 

 covered with a yellow-brown epidermis, with very faint revolving 

 striae crossing the slightly evident, waved lines of growth. 



Length T7 inch., lat. -8 inch. 



Alaska. 



