32 BULLETIN 91, UNITED STATES NATIONAL MUSEUM. 



which 10 occur upon the first three whorls, 12 upon the fourth and 

 penultimate. One of the ribs is decidedly thicker, forming a strong 

 varix. This feature is common to all of our specimens. Intercostal 

 spaces about twice as wide as the ribs and very shallow. In addi- 

 tion to the axial sculpture the entire surface of spire and base is 

 marked by equal and almost equally spaced, closely placed, wavy, 

 incised, spiral lines, of which about 24 occur between the sutures on 

 the penultimate turn and about 30 upon the base of the last whorl. 

 Sutures ill-donned. Aperture with the posterior angle acute; outer 

 lip thick within, sharp at edge, sinus scarcely indicated a little dis- 

 tance anterior to the summit; columella almost straight, covered 

 by a thin callus, which extends up on the parietal wall, forming a 

 tubercle near the posterior angle. 



The type, Cat. No. 117, U.S.N.M., was collected by William 

 Stimpson on the North Pacific Exploring Expedition at Simons 

 Bay. It has eight whorls and measures : Length, 8.1 mm.; diameter, 

 3.5 mm. Cat. No. 186687, U.S.N.M., contains three additional 

 specimens from Port Alfred (Coll. No. 45). 



Genus DAPHNELLA Hinds. 



DAPHNELLA ? SULCATA Sowerby. 



Cat. No. 186690, U.S.N.M., one specimen from Port Alfred (Coll. 

 No. 48). 



DAPHNELLA ALFREDENSIS, new species. 

 Plate 8, fig. 3. 



Shell spindle shaped, milk white, semi translucent. Nuclear 

 whorls decollated; post-nuciear whorls well rounded, appressed at 

 the summit, marked by moderately strong, protractively curved, 

 sinuous, axial ribs, of which 12 occur upon the first, 14 upon the 

 second and third, and 18 upon the penultimate turn. These ribs 

 are about as wide as the spaces which separate them. Intercostal 

 spaces shallow, crossed by slender, equal and equally spaced, spiral 

 threads, of which 6 occur upon the first, 7 upon the second, 12 upon 

 the third, and 15 upon the last turn between the sutures. The ap- 

 pressed portion of the whorls appeare to be free from spiral sculp- 

 ture. Sutures feebly marked; periphery of the last whorl well 

 rounded; base rather long; the posterior half well rounded and the 

 anterior half somewhat concaved, marked by the feeble continuations 

 of the axial ribs and spiral threads which equal those of the spire in 

 strength and spacing. Aperture oval, strongly channeled anteriorly, 

 posterior angle acute; outer lip thin, showing the external sculpture 

 within; inner lip almost evenly concaved; parietal wall glazed with 

 a thin callus. 



The type, Cat. No. 227753, U.S.N.M., comes from Port Alfred 

 (Coll. No. 848). It has five post-nuclear whorls, and measures: 

 Length, 9.6 mm.; diameter, 4.5 mm. 



