MOLLUSCA OF THE ' CHALLENGER ' EXPEDITlOlSr. 379 



in whicli the tip rises in a minute point, while here it is im- 

 pressed. 



8. FUSUS (SiPHO) EDWAEDIENSIS, n. Sp. 



St. 145. Dec. 27, 1873. Lat. 46° 43' S., long. 88° 4' 30' E. 

 Between Marion Island and Prince Edward Island. 140 fms. 

 Grey sand. 



Shell. — Small, thin, porcellaneous white, feebly ribbed and 

 faintly spiralled, with high spire, blunt apex, rounded whorls, a 

 short contracted base, and a small snout. Sculpture. There are 

 on the penultimate whorl over 20 rounded, oblique, and rather 

 straight riblets, parted by similar, rounded furrows ; these are ob- 

 solete on the last whorl, and are much fewer in number higher 

 up the spire : the lines of growth are very fine. Spirals— the 

 surface is covered with very faint, rounded, close-set threads. 

 Colour porcellaneous white with a dead surface. Spire high, 

 conical, subscalar. Apex blunt, rounded, mamillary, with aa im- 

 mersed tip ; it consists of tw^o smooth, globose, embryonic whorls. 

 Whorls 5g ; they are suddenly contracted above into the suture, 

 below this they are convexly cylindrical, with a very slight con- 

 traction at the bottom ; the last is a very little tumid, with a 

 rounded conical base produced into a very short, lop-sided, emar- 

 ginate snout. Suture rather deep and sharp. Mouth oval, 

 hardly angulated above, and produced below into the short, oblique, 

 open canal. Outer Up well arched ; there is a feeble sinus near 

 the suture, and a slight prominence in front. Inner Up concave 

 above, straight on the pillar, the point of which is twisted and 

 obliquely truncate ; it is defined by a thin narrow glaze. H. 0"2o. 

 B. 0-11. Penultimate whorl, height 0*06. Mouth, height 0-12. 

 breadth O'OS. 



The half-grown shells of Columlella (P.) HolhblU, Moller, 

 which often present feeble riblets, have some faint resemblance to 

 this species, but these have a much sharper apex and a less im- 

 pressed suture. 



9. Fusus (Neptunea) Dalli, n. sp. 



St. 173. July 24, 1874. Lat. 19° 9' S., long. 179° 41' E. Ofi" 

 Matuka, Eiji. 315 fms. Coral. 



Shell. — Thin, porcellaneous, pale ruddyish yellow, fusiform, 

 long, finely ribbed and spiralled, with compressed and constricted 

 whorls and a club-shaped mouth. Sculpture. Longitudinals — the 

 whorls are crossed by narrow little ribs and furrows, of which 



