54 PROCEEDINGS OF THE NATIONAL, MUSEUM vol.70 



Tryon placed shells like these with Seminella, but the solid bright 

 colored tropical shells which are typical of that genus can hardly be 

 closely associated with the present group. 



ASTYRIS (FLUELLA) AMPHISSELLA Dall 



Columbella (Astyris?) amphissella Da-li., Bull. Mus. Comp. Zool., vol. 9, 

 p. 91, 1881; vol. 18, p. 188, pi. 19, fig. 10 e, 1889. 



Shell minute, thin, white, with an inflated smooth nucleus of one 

 and three subsequent whorls; suture distinct, not deep, whorls well 

 rounded; spiral sculpture variable, obsolete on some specimens and 

 quite evident on others, composed of very fine equal spiral striae; 

 axial sculpture also variable in strength, when best developed (as in 

 the specimen selected as type), there are on the last whorl about 24 

 fine sharp slightly flexous riblets, obsolete beyond the periphery, with 

 narrower interspaces; aperture subovate, outer lip slightly thickened, 

 simple; body with a coat of enamel; pillar short, canal short but 

 sharply recurved. Length of shell, 4.5; of aperture, 2.5; diameter^ 

 2 mm. U. S. Nat. Mus. Cat. No. 108323. 



Off Georgia, abundant. 



ASTYRIS (FLUELLA), variety RUSHII Dall. 



Anachis amphissella, variety rushii Dall, Bull. Mus. Comp., Zool vol. 18, 

 p. 188, 1889. 



Off Georgia, numerous, with the type. Off Fowey Rocks, in 465 

 fathoms; Dr. W.H. Rush. 



ASTYRIS (FLUELLA) ENIDA, new species 



Shell small, thin, white, with an inflated translucent nucleus of a 

 whorl and a half and about four subsequent moderately shouldered, 

 well-rounded whorls; suture distinct, not appressed; axial sculpture 

 of few, irregularly distributed, thin sharp low lamellae, crossing the 

 whorls and more or less obvious incremental lines; spiral sculpture 

 covering the shell, of flne equal, and mostly equally spaced, threads 

 with usually narrower interspaces; aperture ovate, body and pillar 

 with a thin coat of enamel; outer lip thin, simple, not varicose; canal 

 short, recurved; axis pervious. Length of shell, 6; of aperture, 2.7; 

 diameter, 2.5 mm. U. S. Nat. Mus. Cat. No. 108324. 



Off Georgia and Fernandina, common. 



The periostracum is pale, fibrous, and usually dehiscent. 



ASTYRIS (FLUELLA) APPRESSA, new species 



Shell, small, short, stout, white, with an inflated blunt nucleus of 

 a whorl and a half and about three subsequent whorls; suture dis- 

 tinct, not appressed; spiral sculpture of fine close equal even and 

 evenly distributed threads covering the whole shell; axial sculpture 

 of a few irregularly distributed obscure ridges most obvious on the 



