62 PROCEEDINGS OF THE NATIONAL MUSEUM vol.70 



EPITONIUM LAVARATUM, new species 



Shell white with a reticulated brown elongated nucleus of about 

 three whorls and 9 or 10 subsequent whorls; suture deeply con- 

 stricted, not solute; whorls well and evenly rounded with a large smooth 

 basal disk; axial sculpture of (about 16 on the last whorl) equal 

 rounded ribs with wider interpaces, interspersed on the later 

 whorls with heavier varices; fine incremental lineation also occurs; 

 spiral sculpture of 10 or more threads with wider interspaces and 

 more or less spiral striation; the base is imperforate, the aperture 

 rounded. Length, 10; diameter, 3 mm. U. S. Nat. Mus. Cat. No. 

 347845. 



Off Georgia in large numbers, but mostly worn and discolored. 



EPITONIUM DISCOBOLARIUM DaU 



Scala {Opalia) discobolaria Dall, Bull. Mus. Comp. Zool., vol. 18, p. 324, pi 

 18, fig. 2, 1889. 



Shell small, whitish, acute with eight rather rapidly enlarging 

 whorls exclusive of the (lost) nucleus; suture well marked, somewhat 

 undulate; whorls well rounded, with a brown basal disk the edge of 

 which is usually covered by the suture; axial sculpture of (on the 

 last whorl 14) strong rounded low ribs with wider interspaces, and 

 obvious incremental lines in the interspaces; spiral sculpture of (on 

 the last whorl five or six) sharp narrow grooves, with wider inter- 

 spaces, which also cut the ribs; on the basal disk there is a relatively 

 smooth border cut by a feeble median stria, inside this border there 

 are five or six spiral grooves pretty close together; the shell is imper- 

 forate and the aperture roughly quadrate; the ribs are not contin- 

 uous up the spire. Length, 7.5; diameter, 3.5 mm. U. S. Nat. 

 Mus. Cat. No. 333461. 



Off Fernandina and Georgia, two specimens. 



This has a general resemblance to E. lavaratum but the sculpture 

 is different and the basal disk not smooth as in that species. The 

 original type of this species was in bad order and the diagnosis of a 

 more perfect specimen is now furnished. 



EPITONIUM CANIUM, new species 



Shell small, slender, whitish, with a brown reticulate acute nucleus 

 of three, and eight subsequent whorls; suture deeply constricted but 

 not solute; whorls inflated; spiral sculpture of (on the last whorl five 

 or six) rounded cords, equally distributed with somewhat wider inter- 

 spaces, overrunning the ribs and slightly swollen at the intersections; 

 there is a well-marked basal disk the edge of which is covered by the 

 suture, and which carries five or six fine close spiral threads; axial 

 sculpture of (on the last whorl 15) strong rounded ribs, the final rib 



