380 BET. E. BOOG WATSON ON THE 



there are about 11 on tlie upper whorls and 19-20 on the penul- 

 timate, becoming increasingly feeble as they approach the mouth ; 

 they harmonize completely with the course of the dense, clear, 

 and sharp hair-like lines of growth. Spirals — there are narrow, 

 prominent spiral threads, of which two near the bottom of the 

 whorls are somewhat stronger than the others ; the furrow which 

 parts them is also a little wider and deeper than the rest ; below 

 this is a small but rather sudden constriction of the whorls into 

 the suture; the spirals in crossing the longitudinal ribs are 

 thrown out into blunt white linear points ; the spirals on the 

 base and snout are more regular and equal than the others. 

 Colour a pale ruddyish yellow, with a fine roughened surface. 

 Spire high and conical. Apexhroken, but apparently very small, 

 sharp, and smooth. Whorls, 8 remain ; probably the broken em- 

 bryonic apex consisted of two more ; they are convex, with a 

 slight slow contraction above and a small sudden constriction 

 below ; the last is small, long, with rounded outlines, and produced 

 into a long, rather lop-sided and slightly twisted snout. Suture 

 fine, sharp, impressed. Mouth long, club-shaped, being oblong, 

 pointed above and produced iu front into a longish canal. Outer 

 lip thin, with a slight, white, internal varix, not much arched, 

 patulous in front, where its line is concave, and then straight 

 along the canal. Inner lip short and scarcely convex on the 

 body, hollowed at the base of the pillar, which is narrow, straight, 

 and cut ofi" in front, on a long, slightly oblique, and somewhat 

 twisted line ; the glazing which edges it is very thin and narrow. 

 H. 1-27. B. 0-5. Penultimate whorl, height 0-2. Mouth, 

 height 0-7, breadth 0*24. 



The general aspect of this shell is very much that of a Fascio- 

 laria; but the pillar has no plaits. It is not in form unlike the 

 young of F. rostratus, Olivi ; but the base is much longer, and 

 the snout shorter, and the constriction at the bottom of the whorls 

 is not found in that species ; in these respects it has more resem- 

 blance to F. syracusanus,'haxQ.., in which, however, the whole sculp- 

 ture is very unlike. It resembles perhaps most of all F.Jtlosus, 

 A. Ad., from the Chinese seas, but is still slimmer in its outlines. 



I have called this species after my friend Mr. "W. H. Dall, of 

 the Smithsonian Museum, Washington, who has give me much 

 good counsel and valuable information. 



