299 



lations, which gradually become more numerous and costu- 

 late ; in the next whorl they become more distant again, and 

 remain throughout the shell as feeble axial angulations which 

 are just visible when looking at the shell from the apex. The 

 spire-whorls are subconvex, subangulate just below the 

 middle, and have the tipper fourth somewhat adpressed just 

 below the simple impressed suture. Aperture oblique oblong- 

 ovate ; canal short, wide, scarcely notched ; outer lip solid 

 but sharp, with a deep round sinus separat-ed from the as- 

 cending suture by a callus from, the posterior part of the 

 inner lip, then straightly convexly antecurrent to two shal- 

 lower sinuses at the base of the canal ; inner lip a complete 

 smooth thin applied glaze, thickened behind. Spiral in- 

 cisions, which begin in the second half of the first sculptured 

 protoconchal whorl, cut the surface up into flat slightly round- 

 ed ribs, increasing to eleven in the penultimate and twenty- 

 four in the body-whorl, the second below the suture and that 

 at the angulation being the widest. Microscopic accremental 

 striae scratch the whole surface and have the sinuosities of 

 the outer lip. A narrow white spiral, articulated with brown, 

 ornaments the angulation ; with a fainter narrower one above, 

 and a rather wider brown spiral articulated with white runs 

 from the back of the aperture over the dorsum nearly to 

 the lip margin. The general colour is brown, with darker 

 irregiilar spots and clouds. 



Dim. — Length, 7"9 mm.; of body-whorl, 4"7 mm.; 

 breadth, 2 mm. 



Locality. — Type alive in 20 fathoms 7 miles south-west 

 of Newland Head ; in 40 fathoms off Beachport, 3 fresh and 

 3 poor ; in 55 fathoms off Cape Borda, 1 fresh ; in Gulf St. 

 Vincent at unrecorded depth, 1 fresh. 



One example shows some ten previous labral edges in 

 the body-whorl, sinuously marked out in white, and followed 

 by deep-brown, which gradually fades out at the next labral 

 edge. The affinity of this species is close to D. af/restis, which 

 may possibly be a rude costate variant. 



Drillia agrestis, n. sp. PI. xxvii., fig. 7. 



Shell solid, rugged, elongate-fusiform, of 7| whorls, in- 

 cluding the protoconch of one whorl and a half, smooth, 

 round, and blunt. Spire-whorls sloping, scarcely concave in 

 the upper part, convex in the lower. Suture distinct, with 

 a narrow adpressed margin. Body-whorl concavely attenu- 

 ated at the base. Aperture obliquely oval, shortly contracted 

 posteriorly ; canal short, open, barely notched. Outer lip 

 sharp, slightly ascending at the suture, with the posterior 



