314 CYLICHNA. 



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 iii. diam. 0*09. Mouth, breadth at same place O'Ol inch. 

 ( Wats.). 



Amboina, 15-25 fms. 



C. labiata W^TS., Chall. Rep. Gastr., p. 669, pi. 50, f. 4. 



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

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

 ever, is sharp. (Wats.). 



C. CONCENTRICA A. Adams. PI. 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) ; Darnley Island, Torres Straits 

 (Brazier). 



B. (Cylichna) eoneentrica AD., Thes., p. 594, pi. 125, f. 146. 

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



C. STRIGELLA A. Adams. PI. 48, fig. 14. 



Shell cylindrical, posteriorly somewhat rounded, engraved with 

 very fine undulating transverse strife ; apex minutely teretely um- 

 bilicated, 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.~). 



Cagayan, Philippines, 25 fms. (Cuming) ; Torres Straits, N. E. 

 Australia (Brazier). 



Bulla (Cylichna) strigella A. ADAMS (not Loven), Thes. Conch.,. 

 ii, p. 592, pi. 125, f. 141. C. strigel/a BRAZ., Proc. Linn. Soc., N. 

 S. W., ii, p. 80. 



