35 
convex, the apical 1 1/2 smooth, the remaining ones sculptured 
with strong longitudinal costae (about 14 on the last whorl) 
disappearing on the base, and spiral lirae separated by impressed 
lines, most distinet between the costae and on the shoulder; on 
the base the spiral lirae become mueh coarser and are here sepa¬ 
rated by interstices of the same breadth. Colour grayish with 3 
fulvous bands on the last whorl (the upper one below the shoulder, 
the lower on the base, and a faint median one); a light zone 
beneath the suture; shell everywhere reticulated with very fine 
brown meshes; aperture with the brown bands shining through. 
Last whorl somewhat ascending in front; aperture narrow, slightly 
widened in the middle, with a small sinus above, contracted below 
to a short canal; outer lip simple, somewhat flexuous, inner lip 
very fine, ill-defined; columella straight, equidistantly 4 plaited, the 
upper plait horizontal, the others gradually more oblique. Dimen¬ 
sions: H. 14.4, br. 7.3 mm. — Locality: North Island: 5, 1 shell. 
The shape and sculpture of this shell are very characteristic 
and separate it distinetly from the previously known N. Zealand 
species of the genus Mitra. 
Vexillum marginatum (Hutton). 
North Island: 16, 6 sps., h. 6.5. — 18, 1 sp., h. 4. 
Vexillum pseudomavginatum (S u t e r). 
North Island: 16, 1 empty shell, h. 3.8. 
Vexillum vubiginosum (Hutton). 
North Island: 17, 1 sp., h. 9.5. — 19, 1 sp., h. 5.5. 
Fam. Chfysodomidae. 
Verconella maxima (Tryon). 
{=Megalatractus maximus Suter). 
North Island: 10, 1 sp., h. 80. — The genus Verconella was 
constituted by I red ale (1914) for the N. Zealand shells referred 
to Siphonalia, a Japanese group with no close relationship to the 
former, and to Megalatractus. 
3* 
