EUONYMA. 41 



atulate, slightly shining, pale tawny. Spire long, the apex 

 subacute. Whorls 13 to 14, planulate, joined by a simple 

 suture, the last whorl one-fourth the total length. Aperture 

 small, acutely oval; outer margin of the peristome simple, 

 straight; columellar margin dilated, reflexed. Length 28, 

 diam. 6 mm. (Morel.). 



Natal, near Port Elizabeth (Crawford). 



Stenogyra acus MOREL., Journ. de Conchyl., 1889, p. 8, pi. 

 1,.,-^. 6. Not Bulimus acus Pfr., a Calostele. 



This shell belongs to the group of B. lanceolatus Pfr. which 

 inhabits the same region. It reproduces that species in min- 

 iature, having a shell of the same sort, epidermis the same 

 color, and an equal number of whorls; but it is smaller and 

 more delicate, the last whorl is less developed, the aperture 

 smaller, and finally, the left border of the peristome is more 

 widely dilated and leaves an umbilical crevice, which does 

 not exist in its congener B. lanceolatus (Morelet) . 



5. E. NATALENSIS (Burnup). PI. 10, fig. 72. 



"Shell elongate, attenuate above, very narrowly umbili- 

 cate, thin, yellowish- white, shining, subtranslucent ; with 9% 

 rather ventricose whorls, the last being one-third of the whole 

 length of the shell, and all, except the first two apical whorls, 

 being ornamented with close, fine, sharp, curved, transverse 

 lirae, the apical whorls being smooth, and the apex itself ob- 

 tuse ; aperture ovate ; outer lip very thin, simple, arched for- 

 ward rather above the middle, and receding towards the base ; 

 inner lip rolled closely back over the columella, which is 

 arcuate. Length 21.5, lat. 6.75 mm." (Burnup). 



Umbogintwini, near Durban, Natal (Burnup). 



Obeliscus natalensis BURNUP, Proc. Malac. Soc. Lond., vi, 

 p. 304, pi. 16, f. 9 (June, 1905). 



The close lirate sculpture, which gives the whole shell a 

 soft, silky appearance, readily distinguishes this species from 

 0. lanceolatus (Pfr.), which is the nearest South African ally 

 known. In the type the exceedingly thin labrum is slightly 

 broken away at the base, for which due allowance has been 

 made in the measurements given. On the parietal wall the 



