44 PLEUROTOMID&. 
interrupted in the middle, those on the anterior part of the whorls 
oblique ; body whorl finely spirally and transversely striated ; sub- 
nodulose near the suture; aperture oblong, canal short ; body whorl 
rather longer than the spire. Pale rosy white. 
Length, 1°12 ; breadth, ‘4; angle of spire, 25°. 
Omaha to Stewart Island. 
D. levis, Hutton, CMM, p. 12. Spire acute ; whorls smooth, 
with median transverse ribs, which are flatter on the body whorl ; 
aperture oblong, fissure deep, close to the suture; canal very short ; 
body whorl shorter than the spire; pale yellow brown, with a broad 
spiral band of pink down the centre of the whorls, across the ribs ; 
mouth and columella white, shading off into pink. 
Length, 75 ; breadth, -28; anyle of spire, 30°. 
Stewart Island. 
D. maorum, Smith; Ann. Nat. His., ath sertes, xix., (1877), p. 
497. Shell fusiform, turreted, pale rose colour, between the ribs 
especially about the middle some brown strigze; whorls 8%, the first 
1% convex, smooth, afterwards but slightly convex, spirally lirated, 
the others concavely excavated above, margined near the suture, then 
rather convex, with crowded obsolete ribs, rather oblique above at the 
excavation (sixteen in the last whorl, vanishing near the middle), spiral 
liree seven, three about the middle smaller than the others; last whorl with 
about fifteen lirae; the middle ones rather distant, produced below into a 
somewhat elongated canal; aperture elongated, its length scarcely 
exceeding three-sevenths of the total; canal sub-elongated, narrow ; 
sinus moderate, situated in the excavation. (Smith.) 
Length, 83 ; diam., ‘26 inch. 
Differs from D. nove-zealandie in the form of the whorls, the 
elongate canal, and different position of the sinus. 
D. emula, Angas; P.Z.S., 7877, p. 36, pl. 5, f. 9 (variety from 
New Zealand.) Shell elongately ovately-fusiform, purplish brown ; 
whorls 10, strongly carinated a little below the sutures, and sharply 
angulated in the middle, below which descend irregular longitudinal 
ribs, nodulose at the angle, strongly transversely ridged below the angle, 
and more finely above ; the upper space between the angle and the 
suture being crossed with delicate crescent-shaped descending striz ; 
spire sharp ; aperture elongately ovate ; outer lip simple, a little con- 
tracted below; posterior sinus moderate; canal short, scarcely re- 
curved. (Angas.) 
Length, 1 inch; breadth, 4 lines (New South Wales.) 
Two specimens from New Zealand have the ribs and nodulous 
sculpture more prominent than in the type. There are also (in the 
British Museum) two examples of a variety of a uniform dull yellow 
colours. (G. HAs) 
D. cheesemani, Hutton ; Jour. de Conch., 1878, p. 16. Ovato- ° 
fusiform ; spire acute, of 9 whorls. Whorls rather angled, suture well 
marked ; spire whorls smooth in front, obliquely striated behind ; body 
