MOLLUSCA OF THE ' CHALLEKGEE ' EXPEDITION". 289 



6. Action (Buccinflus) cinereus, n. sp. 

 Julj 29, 1874. Levuka, Fiji. 12 fms. 



Shell. — Strong, oblong, pointed at both ends, white, witli three 

 spiral bands of cindery spots ; a high, conical, sharp-pointed 

 spire, barely convex spirally striated whorls, a slight suture, a 

 long narrow mouth emarginate in front, and a strongly twisted 

 double-toothed pillar. Sculpture, Longitudinals — there are fine, 

 approximate, hair-like, obsolete lines of growth. Spirals — there are 

 on the body-whorl about 25, on the penultimate about 8, shallow 

 square-cut furrows formed of small contiguous oval pit-marks : the 

 flat raised surface of the shell between these is from one to three 

 times as wide as the furrows. On the first two whorls these fur- 

 rows are wanting ; on the third whorl only one appears close 

 below the suture. Colour porcellaneous and glossy white, with 

 3 narrowish bands of gfey, made up of small, cindery, somewhat 

 longitudinally arranged spots : these bands, absent on the earlier 

 whorls, first make their appearance on the fifth, from which to the 

 seventh there is only one band immediately above the suture ; its 

 upper edge is somewhat indefinite, flame-like expansions of it 

 extending upwards here and there. On the body another similar 

 band occurs at the periphery ; and a third is on the base, origi- 

 nating just above the upper pillar-tooth ; the two latter are more 

 defined than the first : the cindery spots forming these bands are 

 entirely absent in the furrows. Spire short and conical. Apex 

 small and sharp, the minute tip being distinctly prominent and 

 not in the least twisted or inverted. Suture slight, being scarcely 

 impresssd ; in the earlier whorls it is very horizontal, but latterly 

 it is oblique. Mouth long, narrow, curved-in toward the axis of 

 the shell, sharply pointed above, channelled in front of the pillar- 

 point. Older lip sinuated above ; the lip-edge is roundly pro- 

 minent at the periphery, where it is patulous, hardly curved, and 

 in direction oblique. On the base it is extremely patulous, a 

 little pointed, very curved and retreating ; at the point of the 

 pillar it is very strongly emarginate. Inner lip : the glaze ou 

 the body is not very thick, and has a defined edge which does 

 not extend beyond the mouth ; near the point of the base it is 

 swelled into a small, narrow, blunt oblique tooth, and at the 

 point of the pillar it forms a very strong, twisted, oblique double 

 tooth which dies out very speedily, and does not connect itself 

 with the mouth-edge ; the furrow above the double tooth is very 

 strong. H. 0"4. B. 0'14. Penultimate whorl, height 0*06. 

 Mouth, height 0-28, breadth 0-08. 



