ART. IS SMALL SHELLS DREDGED BY " ALBATROSS " DALL 131 



Genus MARGARITES Leach 



MARGARITES (LIRl'LARIA) MIONA, new species 



Shell minute, white, trochiforni, with a minute smooth nucleus and 

 about three and one-half subsequent whorls; the nucleus is somewhat 

 obliquely set; whorls well rounded, the suture distinct; spiral sculp- 

 ture variably strong or feeble, with usually three or four threads in 

 the vicinity of the periphery, feebler ones on the base, with one or two 

 stronger around the umbilicus; axial sculpture of numerous radial 

 wrinkles extending from the suture to the first spiral thread, then 

 obsolete, except in strongly sculptured specimens on which the axial 

 sculpture reappears on the base, especially near the umbilicus, and 

 rarely shows as beading on the stronger spirals; umbilicus moderate, 

 without an angular verge; aperture rounded, lips thin, united by 

 enamel over the body. Height, 2; major diameter, 1.6 mm. U. S. 

 Nat. Mus. Cat. No. 108143. 



Twenty-five specimens off Fernandina and three off Georgia. 



Genus DILLWYNELLA Dall 



DILLWYNELLA MODESTA Dall 



Dillwynella modesta Dall, Bull. Mus. Comp. Zool., vol. 18, p. 362, pi. 21, 

 figs. 3, 3o, 1889. 



One specimen off Fernandina and five oft' Georgia, mostly imma- 

 ture. Off Santa Lucia in 226 fathoms, bottom temperature 51° F. 



Genus LIPPISTES Montfort 



LIPPISTES? FLANORBIS, new species 



Shell minute, white, evenly enrolled, the whorls adjacent, about 

 two and one-half in number; spiral sculpture none; axial sculpture 

 of fine, close, even threadlike vertical wrinkles surrounding the whorl, 

 feebler on the periphery; aperture circular, entire. Height, 0.7; 

 major diameter, 1.2 mm. U. S. Nat. Mus. Cat. No. 108091. 



One specimen off Fernandina. 



The shell may not be mature. The enrollment is remarkably 

 planate. 



