Bela.] GASTROPODA. 485 



convex below the inconspicuous angle ; body-whorl convex, but 

 faintly contracted at the base. Suture distinct, but little impressed. 

 Aperture lightly oblique, elongately oval, angled above, with a rudi- 

 mentary broad and truncated canal below. Outer Up convex, rather 

 thin and sharp, smooth inside, with a very slight broad sinus below 

 the suture. Columella vertical, excavated toward the parietal wall, 

 slightly turned to the left below. Inner lip narrow, thin, spreading 

 over the convex parietal wall, tapering to a fine point below, and 

 extending to the base of the canal. Operculum very small, length 

 2-1 mm., oval, the nucleus apical. 



Diameter, 4-8 mm. ; height, 10 mm. 



Animal unknown. 



Type in my collection. 



Hob. Whangarei Heads, in 3 to 4 fathoms (C. Cooper). 



2. Bela ula, Watson, 1881. Plate 21, fig. 12. 



Pleurotoma (Drillia) ula, Wats., J.L.S., xv, 1881, 420. Mangilia ula, Suter, 

 T.N.Z.I., xxxi, 71 ; J. Mai., xii, 73. Drillia ula, Wats. : Hutton, P.L.S. 

 N.S.W., x, 117. Pleurotoma (Bela) ula, Watson, Chall. Rep., xv, 312, 

 pi. 22, f. 1. 



Shell small, fusiform, biconical, angulated, obsoletely ribbed and 

 spirally striate, canal short. Sculpture consisting of about 18 axial, 

 very oblique, rather obsolete riblets, parted by wider shallow furrows ; 

 they are strongest and somewhat mucronate at the angulation, extend- 

 ing over the base, but not over the beak. There are many fine hair- 

 like growth-lines. The spirals there are a great many remote fine 

 threads, finer and closer on the shoulder than on the body-whorl ; 

 those at the carination are strong, ornamented with minute granules, 

 which swell into small tubercles in crossing the riblets. The interstices 

 of the ribs and spirals are microscopically granulated. Colour semi- 

 transparent, flinty, white, with a crisp aspect. Spire scalar, conoidal. 

 Protoconch of 2 globose whorls, the nucleus immersed ; they are re- 

 motely microscopically regularly striated. Whorls 5|, slowly increas- 

 ing, with a long sloping shoulder and a sharp carinated angle, below 

 which they are cylindrical, slightly contracted at the suture ; base 

 convexly contracted to the short broad canal. Suture linear, well 

 marked by the contraction of the whorls. Aperture rather large, 

 pyriform, with 3 angles above and a wide open canal below. Outer Up 

 thin, angulated. rectilinear above the angle, flatly curved below ; sinus 

 shallow, rounded. Columella short and straight. Inner lip thin and 

 narrow. (Watson.) 



Diameter, 3 mm. ; height, 6 mm. 



Animal unknown. 



Type in the British Museum. 



Hob. East of East Cape, in 700 fathoms (" Challenger "). 



Remark. The shell is very likely immature (Watson). 



