292 MOLLTJSCA OP THE ' CHALLEKGER ' EXPEDITION. 



the lower, ttough stronger, is slightly less prominent tlian the 

 tipper. H. 0-11. B. 0-07. Mouth, height 0'064, breadth to 

 outside of callus on both lips 0-058. 



This species is not unlike a small B. auriculata, Menard ; but 

 the spire is more depressed, the apex is slightly flatter, and the 

 extreme tip is hardly so small. 



3. ElNGICTTLA PEEACUTA, n. Sp. 



St. 24. March 25, 1873. Lat. 18° 38' 30" N., long. 65° 5' 30" W. 

 N. of Culebra Island, St. Thomas, Danish W. Indies. 390 fms. 

 Coral-mud. 



St. 56. May 29, 1873. Lat. 32° 8' 45" N., long. 64° 59' 35" W. 

 Off Bermudas. 1075 fms. Grrey ooze. Bottom temperature 

 38°-2. 



St. 122. September 10, 1878. Lat. 9° 5' S., long. 34° 50' W. 

 Off Pernambuco. 350 fms. Mud. 



Shell. — Ovate, with a somewhat high conical small pointed 

 spire, smooth and glossy, spirally furrowed below the periphery, 

 with a marginated suture and a largish mouth. Sculpture. Lon- 

 gitudinals — the whole surface is pretty regularly scored with 

 distinct, but not sharp, shallow furrows on the lines of growth. 

 Spirals — just below the suture is a fine furrow fictitiously 

 strengthened by the shining through of the superior whorl; 

 from the periphery to the point of the base there are rather 

 remote spiral furrows, which seem to vary as usual in number 

 and in distinctness. Colour glossy white, with faint bluish tinge. 

 Spire rather high, conical, scarcely subscalar. Apeoc sharp ; for 

 though the extreme tip is a little tumid, it stands well up and is 

 rounded. Whorls 5, conical, slightly convex ; the last is a little 

 tumid above, but a little way behind the outer lip it becomes 

 contracted and flattened. Suture distinct. Mouth rather large, 

 not very oblique. Outer Up very oblique to the axis of the shell, 

 slio^htly thickened, toothed and prominent in the middle, with 

 large open sinus above, and a very slight one in front. Inner 

 lip : there is a rather slight callus with a small tooth about the 

 middle ; the pillar-teeth, which are very far from parallel, are 

 nearly equal H. 018. B. O'l. Mouth, height O'l, breadth 



007. 



B. grandinosa, Hds., from the W.- African coast, is not unlike 

 this species, but is smaller ; the body-whorl in particular is much 

 smaller, while the penultimate is larger ; it is without sculpture 



