THE NAUTILUS. 137 



others at various localities north to San Pedro and Catalina Island, 

 California, mostly beach specimens. The species recalls R. tumida 

 Carpenter, but is much more elevated, though less so than R. in* 

 curvata Cpr., which is also a thinner shell. All three have very 

 nearly identical sculpture. 



Bela grippi Dall, n. sp. 



Shell small, straw-color or pale brown with occasional spiral bands 

 of darker brown, or all brown ; six-whorled, of which the first whorl 

 and a half are white, polished, smooth and turgid, the subsequent 

 portion of the shell having a dull surface ; earlier whorls with the 

 periphery nearer the anterior suture, the whorl behind the periphery 

 somewhat flattened and compressed, crossed by low obscure riblets, 

 about a dozen on the fourth whorl, which become obsolete later; the 

 whorl in front of the periphery shows no axial sculpture ; the whole 

 whorl is spirally sculptured with narrow sharp incised lines, one 

 dividing the space behind the periphery, and about five in front of 

 the periphery on the penultimate whorl ; on the last whorl between 

 the periphery and the siphonal fasciole there are about twelve of 

 these lines, though they probably vary in number with the indi- 

 vidual, while the incremental lines are moderately conspicuous ; 

 outer lips thin, simple ; pillar lips with a small deposit of white 

 callus ; aperture narrow, lunate ; canal very short, wide, with an in- 

 conspicuous fasciole. Length 9, of spire 5, of aperture 4 ; max. 

 diam. 3.5 mm. 



Dredged off San Diego Bay, about five miles south of the entrance 

 in fifteen fathoms, by C. W. Gripp, on a bottom of broken shell. 

 This is a very well marked species, hardly to be compared with any 

 other known from the coast. Seven specimens were obtained of 

 which two are in Mr. Gripp's collection. 



The shell has much the aspect of an Anachis but one specimen 

 retained the dried animal and by carefully soaking it out it proved to 

 be a Plenrotomoid, with a short oval operculum with apical nucleus 

 like that of Bela, though the shell from the absence of the strong 

 axial ribs characteristic of most of the northern Betas has a very 

 different aspect from the familiar forms of that genus. The animal 

 is white, with short acute tentacles and very small black eyes. 



