8 THE PROCEEDINGS OF THE LIXNEAX SOCIETY 



small ridges, interstices quite smooth, columellar rather straight, 

 outer lip acute, inside crenulated or fluted at edge where the grains 

 meet : close at upper part near angle, wide at lower extremity, 

 interior of aperture white. 



Length 19, breadth 10J, alt. 9 lines. 



Hab. Hammond's or Bannietta Island, Solomon Archipelago, 

 found on a reef. (Coll. Brazier.) 



This is one of many islands marked down upon all charts as 

 New Georgia, and very little known to naturalists ; this beautiful 

 shell, so far as I know, remains unique in my cabinet. 



13. — Cassis (Casmaria) Thomsoni. 



Shell umbilicated, thin, inflated, obliquely striated, light chestnut 

 brown, spire drawn out, acute, sature obliquely angled and tabled, 

 spiral raised line between the angle and the suture, ornamented 

 with spots and dots of darker colour, rugosely spirally striated 

 above last whorl, whorls 7, first two smooth, last very large, 

 transversely closely lined, angled and studded with rather close 

 set pointed nodules or tubercules running spirally to the apex ; 

 below the angle smooth channel, then another raised ridge of equi- 

 distant obtuse elongated nodules, aperture somewhat pear shaped ; 

 interior of aperture light brown, peristome thickened, reflected, 

 white, with four dark equi-distant roan square spots showing on 

 the edge, the upper part with five obtuse callus teeth, little below 

 two faint ones show, centre obsolete, lower part, which is flat, 

 indications of more faint obtuse ones show ; columella arched, 

 rather straight, rugosely wrinkled, upper part with six white 

 oblong callus teeth entering spirally inwards ; thick deposit of 

 white callus over the umbilicus, and extends in a thin plate across 

 the body whorl to the right margin or junction of the peristome. 



Length 19, breadth 14, alt. llf lines. 



Hab. off Sydney Heads, 5 miles due east, brought up from a 

 sandy bottom, 45 fathom. (Coll. Brazier.) 



