MUSEUM OF COMrARATIVE ZOOLOGY. 107 



Daphnella calyx n. s. 



Shell decollate and with the aperture imperfect, having evidently the 

 general form of the preceding, but with a slightly more differentiated canal ; 

 surface smooth, polished, with a distinct suture in front of which the fasciole 

 appears as a narrow raised band, with an incised line in front of it and mark- 

 ing its edge; the only other sculpture consists of six or seven sharply incised 

 lines on the canal near its anterior end ; whorls and base full and rounded ; 

 incremental lines visible but faint; color yellowish white with about ten spiral 

 bands of alternate whitish and reddish brown rectangles on the last whorl 

 arranged like the squares on a checkerboard, except that, the white rectangles 

 being longer than the brown ones and the latter being symmetrically arranged, 

 the angles of the brown rectangles in one line do not generally connect with 

 those of the lines in front and behind it; on the curve of the base the rec- 

 tangles are drawn somewhat lozenge-shaped. Lon. of the last whorl, 3.75; 

 lat. of same, 2.75 mm. 



Habitat. Station 2602 of the U. S. Fish Commission, 36 miles S. | W. 

 from Cape Hatteras, N. C, in 124 fms., sand, bottom temperature 61°. F. 



This specimen is but a fragment, yet its characters are so remarkable that a 

 much smaller fragment would be recognizable at once, so I have decided to 

 name it. 



A fragment of a perfectly white shell closely related to D. calyx, but finely 

 spirally striate and with a somewhat depressed fasciole, smooth and not bounded 

 by a groove, the columella much arched and the form slender, was dredged at 

 Station 2, in 805 fms. It is too imperfect to describe, but belongs to no spe- 

 cies known from the region. 



o^ 



? Daphnella sofia n. s. 



Plate X. Fig. 11. 



Shell small, delicate, whitish, with a four-whorled brown, trochiform, Sinusi- 

 gera nucleus and four subsequent rather slender whorls ; transverse sculpture 

 consists of faint delicate lines of growth, which are puckered or gathered into 

 a sort of narrow frill or band, appressed against the suture and bounded in 

 front by the smooth anal fasciole, on which the anterior ends of the wavelets 

 become obsolete; spiral sculpture rather strong on the periphery of some of 

 the earlier whorls, but elsewhere consisting of faint threads and grooves which 

 are extended forward more or less distinctly to the end of the canal; notch 

 small, not deep, close to the suture ; fasciole smooth, slightly impressed ; aper- 

 ture elongated, simple (the specimen being adolescent) ; pillar without callus, 

 thin, its edge slightly reflected and so twisted as to make the axis of the shell, 

 viewed from the anterior end, minutely pervious ; canal narrow, rather long, 

 outer lip thin, arched forward. Lon. of shell, 8.0; of last whorl, 5.5 ; lat. of 

 shell, 3.0 mm. 



Habitat. Station 163, off Guadelupe, in 769 fms., sand, temperature 39°.75 F. 



