BY C. HEDLEY. 503 



flat interspaces smooth. Aperture ovate, toothed by the ending 

 of the spirals. Columella narrowly reflected. Height 1-6 mm.; 

 breadth 0-85 ram. 



Several specimens from 17-20 fathoms off Mast Head. 



The novelty appears to be the smallest and narrowest of its 

 genus. 



When previously discussing Lippistes"^ I was unaware of 

 an excellent review of the genus by von Martens, f 



Odostomia metata, n.sp. 

 (Plate xviii., fig.35.) 



Shell small, thin, columnar, imperforate, smooth, glossy and 

 semitransparent. Adult whorls five, inclining to fusiform shape, 

 narrowly tabulate at the sutures. Protoconch of two or three 

 whorls, small, globose, wound at right angles to the adult axis, 

 half immersed in the flat summit of the first adult whorl, within 

 the margin of which it is contained. Colour : narrow spiral 

 chocolate lines are ruled on a milky ground, ibetween these are 

 transverse bars or checkers of chocolate, a narrow opaque white 

 margin frequently bordering the chocolate. The spiral lines are 

 three on the last whorl, two each on the two earlier and one each 

 on the two others. Chocolate also tinges the outer edge of the 

 columella lip. Base well rounded. Aperture pyriform, the 

 columella with a low oblique fold. Height 2-35 mm.; breadth 

 0-35 mm. 



Two specimens from 17-20 fathoms. 



Odostomia canaria, n.sp. 



(Plate xviii., fig.32.) 



Shell small, rather solid, umbilica.te, elongate, conical, smooth. 

 Colour entirely bright canary-yellow. Adult whorls five, flat- 

 sided. Periphery with a deep groove in which runs the suture 



* These Proceedings, xxvii. p.2.S. 



tVon Martens, Archiv f. JNaturg. Ixiii. 1897, p. 174. 



