314 ( VI.K UNA. 



both somewhat flexuous ; in front it is contracted in towards the 

 pillar, forming at the point of the base a narrow, patulous, but not 

 emarginate gutter ; the edge is sharp, but is strengthened a little 

 way within by a small longitudinal rib, which is of a ruddy white 

 color. Top obliquely truncate, small, with a blunt keel round the 

 edge of the minute, shallow, conical depression, which is half 

 choked by the outer lip. Inner lip: a very thin glaze extends across 

 the gibbously and convexly curved body ; there is a slight angle at 

 the top of the pillar, which is direct, a little oblique, hardly patu- 

 lous, scarcely twisted, very narrow, most feebly toothed and truncate 

 in front ; behind the sharp edge is a small but deep umbilicus. Alt. 

 0*16 in. diam. O09. Mouth, breadth at same place 0*01 inch. 

 (Wats.). 



Amboina, 15-25 fms. 



C. labiata WATS., Chall. Rep. Gastr., p. 669, pi. 50, f. 4. 



This is a very peculiar form, extremely like an Oviila both in 

 shape and in the thickness of the outer lip, the edge of which, how- 

 ever, is sharp. (Wats.). 



C. CONCENTRICA A. Adams. PL 27, fig. 87. 



Shell small, subcylindrical, elongated, a little dilated at the base, 

 white, longitudinally somewhat sulcated, engraved with very dis- 

 tinct transverse strise; spire conspicuous, immersed in the apex, 

 periomphalus radiately striated ; aperture narrow, linear, produced 

 above, dilated below ; columella simple. (Ad.). 



Cagayan, Philippines (Cuming) ; Dnrnley I#lnud, Tor rex Straits 

 (Brazier). 



B. (Cylichna) concentric i An., Thes., p. 594, pi. 125, f. 146. 

 Cylichna concentrica BRAZ., P. L. S., N. S. W., ii, p. 80. 



< . -n:n;KLLA A. Adams. PI. 48, fig. 14. 



Shell cylindrical, posteriorly somewhat rounded, engravi-d with 

 very fine undulating transverse strife ; apex minutely teretely uni- 

 hilicated, deeply perforated, periomphalus solid, white; outer lip a 

 little receding; columella callus, fold distinct; either nude and 

 shining, or covered with a fuscous epidermis. (Ad.). 



<'"'j<iyin, Philijijiin'*, _"> fms. f('umin: ) : Tows Strait.*, \. /.'. 

 Australia (Brazier). 



Bnlla (Cylichna) strigella \. AI\M> ' n.t Lovrii), Thes. Conch., 

 ii, p. 592, pi. 125, f. 141. C. *triyel/<> Hi: \/., Proc. Linn. Soc., N. 

 8, \\'., ii, p. 80. 



