AKT. 18 SMALL SHELLS DREDGED BY '' ALBATROSS '' DALL 61 



EPITONIUM AZELOTES, new species 



Shell small, solid, white, with a minute brown reticulate nucleus of 

 two and a half whorls and about six subsequent well-rounded whorls; 

 suture distinct; axial sculpture of (on the last whorl about 16) strong 

 squarish ribs with equal or narrower interspaces and more or less 

 obvious incremental lines; spiral sculpture of (on the early whorls 2, 

 later 3, and on the last whorl 4) strong cords, which make with the 

 ribs deep reticulations but are not nodulous at the intersections with 

 the ribs; the anterior cord is within the rounded margin of the base, 

 and between it and the axis the surface is nearly smooth and slightly 

 concave; aperture rounded, the outer lip crenulate by the sculpture; 

 the axis is impervious. Length of shell, 4; of aperture, 0.75; diam- 

 eter, 1.7 ram. U. S. Nat. Mus. Cat. No. 108370. 



Off Georgia, one specimen. 



This is a very characteristic form, having somewhat the aspect of 

 a Mathilda. I have found nothing figured which approaches it. 



EPITONIUM, species 



A small, probably immature, shell, white, with a small acute white 

 nucleus of two and a half whorls, and four rapidly enlarging subse- 

 quent adjacent whorls with about a dozen solid smooth varices con- 

 tinuous over the suture; spiral sculpture of fine striae perceptible on 

 the earlier whorls, more or less obsolete on the later ones; there is no 

 basal disk and the axis is imperforate. Length, 3.2; diameter, 

 1.5 mm. U. S. Nat. Mus. Cat. No. 108872. 



Off Georgia, one specimen. 



In doubt as to whether this may not be the young of a larger 

 species, I refrain from naming it. 



EPITONIUM OPALINUM, new species 



Shell small, translucent white, elongated, with a dark-brown, mi- 

 nutely reticulate nucleus of three small whorls and about a dozen sub- 

 sequent whorls; suture distinct, not impressed, with a single simple 

 thread immediately behind it; axial sculpture of (on the last whorl 

 17 to 25) narrow rounded vertical ribs crossing the whorls, with 

 wider interspaces, and very minute regular close-set sharp incremen- 

 tal lines; the base shows the feeble ends of the ribs radiating from 

 the axis; spiral sculpture of (on the last whorl 9 or 10) fine equal 

 simple threads, with usually subequal narrower interspaces, not swol- 

 len where crossing the ribs at the intersections; at the periphery of 

 the whorl is an angle or small ridge which appears behind the suture 

 on the spire; the base is flattish or even slightly concave without 

 spiral sculpture; aperture subquadrate with thin margin, the axis 

 imperforate. Length of shell, 10.5; of aperture, 1.5; diameter, 2.5 

 mm. U. S. Nat. Mus. Cat. No. 108368. 



Off Georgia, 13 specimens. 



The flattish whorls and shallow suture recall Opalia. 



