340 



PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 53. 



The type (Cat. No. 322301 U.S.N.M.) comes from Dutch Harbor, 

 Unalaska, Alaska. It has seven whorls and measures — Length, 4.2 

 mm.; diameter, 1.4 mm. 



STROMBIFORMIS CALIFORNICA, new species, 



Plate 45, fig. 5. 



Shell narrowly subulate, polished. Early whorls yellowish-white, 

 succeeding ones light brown, marked with a dark chestnut brown 

 band at the periphery. A second one of equal strength and size is a 

 little anterior to the middle between the summit and the periphery; 

 lip edged with dark brown. Early whorls rounded, separated by 

 impressed sutures, the succeeding turns flattened with scarcely 

 defined suture, marked by exceedingly fine lines of growth and 

 slightly retractive, irregularly disposed pale brown varicial streaks. 

 Periphery of the last whorl well rounded. Base produced, well 

 rounded. Aperture elongate, oval; posterior angle acute, slightly 

 effuse anteriorly; outer lip thin, inner lip long, curved, revolute 

 appressed to the base, except at the very tip, where it is free; parietal 

 wall covered with a moderately thick callus. 



The type and six specimens (Cat. No. 249619, U.S.N.M.) were 

 dredged in San Diego Bay. The type has 13 whorls and measures — 

 Length, 11.5 mm.; diameter, 2.1 mm. This species resembles 

 Stromhiformis towns endi from the Gulf of California, but differs from 

 it in being uniformly more slender, and also in the color markings. 



The following additional specimens have been examined: 



1 Fragment. 

 STROMBIFORMIS TOWNSENDI, new species. 



Plate 46, fig. 4. 



Shell subulate, polished, tip white, the rest flesh colored with a 

 broad pale zone of brown near the summit, in the middle of which is 

 a darker line. A second pale zone of brown surrounds the middle of 

 the whorl and is separated from the one of the summit by a clear flesh- 

 colored band, which is about as wide as the band, separating it from 

 a third brown zone at the periphery. This third zone extends about 

 as far below the periphery of the last whorl as it extends above it, 

 and is edged on both sides by a very dark, translucent brown band. 

 The middle of the base is surrounded by another brown band, and the 



