162 THE VOYAGE OF H.M.S. CHALLENGER. 



trend is strongly to the right ; they die out on the base ; the whole surface is scored with 

 lamella in the lines of growth which rise in procumbent vaulted scales. Spirals — there are 

 a great many narrow squarish threads parted by narrower furrows ; in the latter the vaulted 

 scales occasionally disappear ; of the threads there are about 8 on the penultimate whorl. 

 Colour somewhat ruddy. Spire high, scalar. Apex small, smooth. Whorls about 5, 

 exclusive of the embryonic ones of the apex ; they are rather short, broad, and convex. 

 The last is a little tumid, with a concavely conical base, produced into a small, triangular, 

 barely reverted snout. Suture oblique, irregular, and somewhat concealed in the angula- 

 tion of the whorls. Mouth elongately pear-shaped, faintly angulated at the insertion of 

 the outer lip. Outer Up patulous, very fully rounded from its insertion to the periphery 

 of the shell, from which point it runs straight to the end. Inner lip patulous, direct, 

 oblique, broad above, but narrowed away from the beginning of the open canal ; from this 

 point an umbilical chink opens between the inner lip edge and the cord formed by the old 

 canal scar, and which twists round the end of the snout. H. 074 in. B. - 43. Penultimate 

 whorl, height 0T7. Mouth, height 0'35, breadth 0-2. 



This species lias some resemblance to Fusus niveus, A. Ad. (Proc. Zool. Soc. Lond., 1851, p. 270, 

 no locality given) ; but that species is pure white, is much stumpier, and has a longer mouth and a 

 much larger base. It vaguely recalls Fusus (?) abnormis, E. A. Smith (Proc. Zool. Soc. Lond., 1878, 

 p. 811, pi. 50, fig. 10), from the Andamans, but the spire is much narrower in the Challenger shell, 

 and the base much more contracted and pointed. It is perhaps as like the young of Murex (Pseudo- 

 murex) lamcllosus, Phil., as anything ; but it has a much smaller last whorl, with a more contracted 

 base ; the spire, too, is higher ; the longitudinal ribs are much stronger, and the spiral threads are 

 more equal. 



2. Typhis, Montfort, 1810. 

 Typhis philippensis, Watson (PL X. fig. 4). 



Typhis philippensis, "Watson, Prelim. Report, pt. 15, Journ. Linn. Soc. Lond., vol. xvi. p. 605. 



Station 161. April 1, 1874. Lat. 38° 22' 30" S., long. 144° 36' 30" E. Off the 

 entrance to Port Philip, Melbourne. 33 fathoms. Sand. 



Shell. — Thinnish, buff-coloured, oblong-fusiform, biconical, scalar, with a shortish 

 spire, a papillary tip, variced and hollow-spined whorls, a contracted base, and a long, 

 fine, reverted and dextrally bent, closed snout. Sculpture: Longitudinals — there are 

 on each whorl about 9 ribs, which are alternately rounded and sharpish ; the latter are 

 varices, which on the last whorl run out to the point of the base ; they bear 5 upturned 

 and reverted, almost twisted, hollow spines, which are open in front ; the intermediate 

 ribs are very slight in themselves, but bear each at the periphery the straight tube of the 

 genus (of which only the last opens through the shell), and below this, in the line of the 

 suture's course, a prominent round-topped tubercle ; the intervals are hollow and broader 



