358 KEY. E. B00& WATSON OlST THE 



Fig. 14. Knobs on the ambulaeral plate-edges in relation with sockets on the 

 corresponding interradials. Pits are shown. Magnified. 



Figs. 15-17. Salmacis hicolor. The median interradial suture, showing pits and 

 knobs, sockets, elevations, and depressions. Magnified. 



MoLLTJscA OE H.M.S. * Chaii,eitgeb ' Expedition. — Part XIII. 

 By the Eev. E. Boog Watson, B.A., P.E.S.E., F.L.S. 



[Published by permission of the Lords Commissioners of the Treasury.] 

 [Bead March 16, 18S2.] 



Earn. BucciNiD^, Flem. 



BucciNUM, L. I Nassa, Lam. 



Phos, Montf. I 



Bttccinum, L. 



1. B. albozonatum, n. sp. | 2. B. aquilarum, n. sp. 



1. BuccnrcjM ALBOzoNATtrM, n. sp. 



St. 155 D. Jan. 20, 1874. Lat. 49° 28' S., long. 70° 13' E. 

 Eoyal Sound, Kerguelen. 28 fms. Mud. 



Shell. — Small, thin, fusiform, with a high spire, a short base, 

 and a small snout, of a ruddy brown, tipped and banded with 

 white ; it has spiral threads. Sculpture. Longitudinals — on 

 the earlier whorls there are some feeble folds below the suture ; 

 only sharpish hair-like lines of growth elsewhere. Spirals 

 — over the whole surface there are flat threads with furrows 

 of equal breadth between them : of these, on the penultimate 

 whorl there are about 10 ; on the snout they are finer and 

 closer. Colour muddy brown, with a transparent white-tipped 

 pillar and central band on each whorl. Spire high, rather 

 narrow. Apex blunt, rounded, with a slightly immersed tip. 

 Whorls 6, regularly convex; the last contracts slowly on the 

 base, and is produced into a short, one-sided, slightly ex- 

 panded, truncated snout. Suture rather deeply impressed. 

 Mouth largish, oval, open, /straight, bluntly pointed above, pro- 



