196 THE VOYAGE OF H.M.S. CHALLENGER 



tubercles ; 1 above this there are two rounded threads, and below it one, parted by flat 

 furrows three times their breadth ; on the last whorl below the keel there are of these 

 threads, on the base three, at the root of the snout one, and on the snout about ten. The 

 whole surface is further scratched with fine sharp lines. Colour : the specimen is dead 

 and bleached. Spire scalar, high, and conical. Apex eroded. Whorls 6 to 7, well 

 rounded but for the prominent sharp keel which angulates them ; they are very much 

 contracted above and markedly so below ; the last is a little tumid, with a round much 

 contracted base, produced into a long, straight, narrow snout. Suture a minute line at 

 the bottom of the deep broad hollow in which the superior and inferior whorls meet. 

 Mouth irregularly circular, and produced into a long, straight, narrow canal. Outer Up 

 thin. Inner lip shortly concave above, and then very straight. H. 147 in. B. - 62. 

 Penultimate whorl, height 0'2. Mouth, height 0-87, breadth 0-3. 



This species, the only specimen of which is unfortunately in very bad condition, slightly 

 resembles Fusus spiralis, A. Ad., but is broader, the suture is opener and shallower, the upper part 

 of the whorls is much more sculptured, and the keel is much sharper and more expressed. 



10. Fusus sarissophor us," Watson (PI. XIV. fig. 1). 



Fusus sarissophor us, Watson, Prelim. Keport, pt. 14, Journ. Linn. Soc. Lond., vol. xvi. p. 382. 



Station 122. September 10, 1S73. Lat. 9° 5' S., long. 34° 50' W. Off Pernambuco. 

 350 fathoms. Red mud. 



Shell. — Thin, porcellanous, white, acutely, substellately carinated, with a short, 

 conical, subscalar spire, mamillate apex, deep suture, contracted base, and long, sharp, 

 and fine snout. Sculpture : Longitudinals — fine hair-like lines of growth closely cover 

 the surface. Spirals — near the bottom of each whorl there is a very sharply expressed 

 but not narrow keel, which is closely beset on the edge with rounded compressed little 

 tubercles ; the whole surface of the whorls is scored with fine rounded threads and broader 

 furrows, which are more delicate above than below the keel ; these become obsolete 

 toward the point of the snout. Colour porcellanous white. Spire short and conical. 

 Apex mamillate, but small ; it consists of nearly two glossy, keelless, cylindrical whorls, 

 of which the extreme tip is flattened down on one side. Whorls 7, sharply angulate and 

 biconical, being contracted above and below. Suture deep and sharp. Mouth clavate, 

 being oval above and produced below into a very long and minute canal. Outer lip 

 sharp, rounded, pinched in at the origin of the canal, down the side of which the line 

 runs straight, and parallel to the pillar. Inner lip slightly hollowed above and very 

 straight in front ; it is defined by a very thin and narrow glaze. H. 077 in. B. 0*28. 

 Penultimate whorl, height 0-08. Mouth, height 0"55, breadth O'll. 



1 Hence the name. - So called from the long pike-like snout which it bears. 



