22 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 56. 



wider interspaces on the base; the canai has about half a dozen 

 smaller closer threads; axial sculpture of nine oval prominent 

 nodules on the periphery, which may in some specimens be bisected 

 by an incised spiral line; the incremental lines are not prominent; 

 aperture rather wide and short; anal sulcus large, deep, with a 

 small subsutural callus; outer lip sharp edged, with a small varix, 

 internally not lirate; canal short, wide, deep, with a perceptible 

 siphonal f asciole and slightly recurved. Height of shell, 10 : of last 

 whorl, 6.5; diameter, 3 mm. Cat. No. 59345, U.S.N.M. 



Range. — Beach at Acapulco, Mexico; W. H. Dall. 



The specimen is slightly beach worn and the sculpture is prob- 

 ably sharper when fresh. 



CRASSISPIRA CANDACE, new species. 



Plate 6, fig. 6. 



Shell small, pale purple with touches of brown, the nucleus lost, 

 with about seven subsequent short whorls ; suture appressed, obscure, 

 behind a moderately impressed anal fasciole with a fine thread be- 

 tween them; other spiral sculpture of (on the spire) two peripheral 

 close-set threads overriding the ribs; in front of these on the last 

 whorl are two or three obscure broad flattish ridges with rather wide 

 interspaces overridden by the axial sculpture, and on the canal a 

 few rather sharp threads more closely set; axial sculpture of 10 or 

 more short ribs on the penultimate whorl with narrower interspaces ; 

 on the last whorl there are about 13 smaller ribs extending nearly to 

 the canal and reticulating the spiral sculpture ; the incremental lines 

 are rather marked; aperture wide and short, anal sulcus large, 

 rounded, with a subsutural callus; outer lip thin-edged, prominent, 

 with a large rounded varix behind it, within dark brown, smooth; 

 inner lip simple, pillar very short, not callous, canal very short but 

 distinct. Height of shell, 7; of last whorl, 3.5; diameter, 2 mm. 

 Cat. No. 73929, U.S.N.M. 



Range. — Gulf of California, Stearns collection. 



This shell is so small and its sculpture so intricate that its descrip- 

 tion is not easy. 



CRASSISPIRA APPRESSA Carpenter. 



Plate 7, fig. 2. 



Drillia appressa Carpenter, Ann. Mag. Nat. Hist., ser. 3, vol. 14, p. 45, 

 July, 1864. 



Range. — Cape San Lucas, J. Xantus. Cat. No. 4087, U.S.N.M. 



CRASSISPIRA DIRGE, new species. 



Plate 6, fig. S. 



Shell acute, dark brown (the nucleus lost) with about a dozen 

 whorls, the spire acute, rather flat sided; axial sculpture only of faint 



